Z Questions

4/2/20224/2/2022

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Use this calculator to compute the z-score of a normal distribution.

Z Questions And Answers

A What A is a major seaport in Northern Egypt? Alexandria B What B is a large muscle in the arm? Biceps C What C is a Stephen King book about a wild dog? Cujo D Which D is an English county, known as the Land of the Prince Bishops? Durham E Which E is. Questions with pictures of unfolded cubes with designs on each cube face asking which of the choices is the image that the unfolded cube would be if it were folded. Questions with pictures of unfolded shapes like rectangular prisms and pyramids asking the test taker to identify which 3-dimensional shape the unfolded paper would be once folded. This z-score means that 7.5 is -0.54 standard deviations away from the mean in our sample of tree heights. Z-scores can be both positive and negative numbers. A negative z-score indicates that the data point is less than the mean, and a positive z-score indicates the data point in question is larger than the mean. Where x is the raw score, μ is the population mean, and σ is the population standard deviation. The z-score has numerous applications and can be used to perform a z-test, calculate prediction intervals, process control applications, comparison of scores on different scales, and more.

Z-score and Probability Converter

Please provide any one value to convert between z-score and probability. This is the equivalent of referencing a z-table.

Probability between Two Z-scores

Use this calculator to find the probability (area P in the diagram) between two z-scores.

RelatedStandard Deviation Calculator

What is z-score?

Z Score Questions

The z-score, also referred to as standard score, z-value, and normal score, among other things, is a dimensionless quantity that is used to indicate the signed, fractional, number of standard deviations by which an event is above the mean value being measured. Values above the mean have positive z-scores, while values below the mean have negative z-scores.

The z-score can be calculated by subtracting the population mean from the raw score, or data point in question (a test score, height, age, etc.), then dividing the difference by the population standard deviation:

z =

x - μ

where x is the raw score, μ is the population mean, and σ is the population standard deviation.

The z-score has numerous applications and can be used to perform a z-test, calculate prediction intervals, process control applications, comparison of scores on different scales, and more.

Z-table

A z-table, also known as a standard normal table or unit normal table, is a table that consists of standardized values that are used to determine the probability that a given statistic is below, above, or between the standard normal distribution.

The table below is a right-tail z-table. Although there are a number of types of z-tables, the right-tail z-table is commonly what is meant when a z-table is referenced. It is used to find the area between z = 0 and any positive value, and reference the area to the right-hand side of the standard deviation curve.

z	0	0.01	0.02	0.03	0.04	0.05	0.06	0.07	0.08	0.09
0	0	0.00399	0.00798	0.01197	0.01595	0.01994	0.02392	0.0279	0.03188	0.03586
0.1	0.03983	0.0438	0.04776	0.05172	0.05567	0.05962	0.06356	0.06749	0.07142	0.07535
0.2	0.07926	0.08317	0.08706	0.09095	0.09483	0.09871	0.10257	0.10642	0.11026	0.11409
0.3	0.11791	0.12172	0.12552	0.1293	0.13307	0.13683	0.14058	0.14431	0.14803	0.15173
0.4	0.15542	0.1591	0.16276	0.1664	0.17003	0.17364	0.17724	0.18082	0.18439	0.18793
0.5	0.19146	0.19497	0.19847	0.20194	0.2054	0.20884	0.21226	0.21566	0.21904	0.2224
0.6	0.22575	0.22907	0.23237	0.23565	0.23891	0.24215	0.24537	0.24857	0.25175	0.2549
0.7	0.25804	0.26115	0.26424	0.2673	0.27035	0.27337	0.27637	0.27935	0.2823	0.28524
0.8	0.28814	0.29103	0.29389	0.29673	0.29955	0.30234	0.30511	0.30785	0.31057	0.31327
0.9	0.31594	0.31859	0.32121	0.32381	0.32639	0.32894	0.33147	0.33398	0.33646	0.33891
1	0.34134	0.34375	0.34614	0.34849	0.35083	0.35314	0.35543	0.35769	0.35993	0.36214
1.1	0.36433	0.3665	0.36864	0.37076	0.37286	0.37493	0.37698	0.379	0.381	0.38298
1.2	0.38493	0.38686	0.38877	0.39065	0.39251	0.39435	0.39617	0.39796	0.39973	0.40147
1.3	0.4032	0.4049	0.40658	0.40824	0.40988	0.41149	0.41308	0.41466	0.41621	0.41774
1.4	0.41924	0.42073	0.4222	0.42364	0.42507	0.42647	0.42785	0.42922	0.43056	0.43189
1.5	0.43319	0.43448	0.43574	0.43699	0.43822	0.43943	0.44062	0.44179	0.44295	0.44408
1.6	0.4452	0.4463	0.44738	0.44845	0.4495	0.45053	0.45154	0.45254	0.45352	0.45449
1.7	0.45543	0.45637	0.45728	0.45818	0.45907	0.45994	0.4608	0.46164	0.46246	0.46327
1.8	0.46407	0.46485	0.46562	0.46638	0.46712	0.46784	0.46856	0.46926	0.46995	0.47062
1.9	0.47128	0.47193	0.47257	0.4732	0.47381	0.47441	0.475	0.47558	0.47615	0.4767
2	0.47725	0.47778	0.47831	0.47882	0.47932	0.47982	0.4803	0.48077	0.48124	0.48169
2.1	0.48214	0.48257	0.483	0.48341	0.48382	0.48422	0.48461	0.485	0.48537	0.48574
2.2	0.4861	0.48645	0.48679	0.48713	0.48745	0.48778	0.48809	0.4884	0.4887	0.48899
2.3	0.48928	0.48956	0.48983	0.4901	0.49036	0.49061	0.49086	0.49111	0.49134	0.49158
2.4	0.4918	0.49202	0.49224	0.49245	0.49266	0.49286	0.49305	0.49324	0.49343	0.49361
2.5	0.49379	0.49396	0.49413	0.4943	0.49446	0.49461	0.49477	0.49492	0.49506	0.4952
2.6	0.49534	0.49547	0.4956	0.49573	0.49585	0.49598	0.49609	0.49621	0.49632	0.49643
2.7	0.49653	0.49664	0.49674	0.49683	0.49693	0.49702	0.49711	0.4972	0.49728	0.49736
2.8	0.49744	0.49752	0.4976	0.49767	0.49774	0.49781	0.49788	0.49795	0.49801	0.49807
2.9	0.49813	0.49819	0.49825	0.49831	0.49836	0.49841	0.49846	0.49851	0.49856	0.49861
3	0.49865	0.49869	0.49874	0.49878	0.49882	0.49886	0.49889	0.49893	0.49896	0.499
3.1	0.49903	0.49906	0.4991	0.49913	0.49916	0.49918	0.49921	0.49924	0.49926	0.49929
3.2	0.49931	0.49934	0.49936	0.49938	0.4994	0.49942	0.49944	0.49946	0.49948	0.4995
3.3	0.49952	0.49953	0.49955	0.49957	0.49958	0.4996	0.49961	0.49962	0.49964	0.49965
3.4	0.49966	0.49968	0.49969	0.4997	0.49971	0.49972	0.49973	0.49974	0.49975	0.49976
3.5	0.49977	0.49978	0.49978	0.49979	0.4998	0.49981	0.49981	0.49982	0.49983	0.49983
3.6	0.49984	0.49985	0.49985	0.49986	0.49986	0.49987	0.49987	0.49988	0.49988	0.49989
3.7	0.49989	0.4999	0.4999	0.4999	0.49991	0.49991	0.49992	0.49992	0.49992	0.49992
3.8	0.49993	0.49993	0.49993	0.49994	0.49994	0.49994	0.49994	0.49995	0.49995	0.49995
3.9	0.49995	0.49995	0.49996	0.49996	0.49996	0.49996	0.49996	0.49996	0.49997	0.49997
4	0.49997	0.49997	0.49997	0.49997	0.49997	0.49997	0.49998	0.49998	0.49998	0.49998

Z Test Questions And Answers Pdf

A What A is a major seaport in Northern Egypt?
Alexandria
B What B is a large muscle in the arm?
Biceps
C What C is a Stephen King book about a wild dog?
Cujo
D Which D is an English county, known as the Land of the Prince Bishops?
Durham
E Which E is the home ground of Leeds United?
Elland Road
F What F is a measure of beer?
Firkin
G Which G is San Francisco’s baseball team?
Giants
H Which H is the Greek version of the god Mercury?
Hermes
I What I comes from the Islets of Langerhan?
Insulin
J What J is also known as the Desert Rat?
Jerboa
K What K was a film starring Jane Fonda and Donald Sutherland?
Klute
L Which L is an island 10 miles off the coast of North Devon famous for its wildlife?
Lundy
M What M is the official residence of the Lord Mayor of London?
Mansion House
N What N is a nine sided figure?
Nonagon
O What O is a clay musical instrument from South America?
Ocarina
P Which P created the modern police force?
Peel
Q Which Q was an old fashioned size of paper?
Quarto
R What R was the character played by Sigourney Weaver in the Alien movies?
Ripley
S What S is the real name for the breast bone?
Sternum
T Which T wrote Lord of the Rings?
Tolkien
U Which U had a number 1 hit in 1991 with The Fly?
U2
V What V is an American state named for a queen of England?
Virginia
W What W is the name of the main character in The Perishers?
Wellington
X Which inert gas has the chemical symbol Xe?
Xenon
Y Which Y is New Mexico’s state flower – having long spiny leaves and greeny-white flowers?
Yucca
Z What Z is a musical instrument?
Zither

Z Transform Questions And Answers Pdf

(A) What is the name of the national airline of Russia?
Aeroflot
(B) Which species of ape is prevalent on the Rock of Gibraltar?
Barbary
(C) What name is given to the patterns made by stars?
Constellation
(D) What form of headgear was favoured by Sherlock Holmes?
Deerstalker
(E) What is the outer layer of the skin called?
Epidermis
(F) Which unit of measurement is equivalent to one eight of a mile?
Furlong
(G) Name the process in which steel is covered in zinc
Galvanisation
(H) Which is the only bird that can fly backwards?
Hummingbird
(I) Which element is obtained from seaweed?
Iodine
(J) Which style of music is characterised by syncopated rhythms?
Jazz
(K) What name is given to the backbone of a ship?
Keel
(L) What name is given to the beam above a door?
Lintel
(M) What is a Muslim place of worship called?
Mosque
!(N) What type of cloud signifies bad weather?
Nimbus
(O) What name is given to a unit of electrical resistance?
Ohm
(P) Which girl’s name is Latin for “foreseeing”?
Prudence
(Q) What is a container for holding arrows called?
Quiver
(R) What is measured in curies?
Radioactivity
(S) What was the first commodity to be rationed in World War 1?
Sugar
(T) What is the name of the large wooded valley located in central Scotland?
Trossachs
(U) Which company made England’s 1998 World Cup strip?
Umbro
(V) What was the name of the first spacecraft to land on Mars?
Viking
In the Peanuts cartoon what is the name of Snoopy’s feathered friend?
Woodstock
(X) What was issued for a film for the first time in 1950?
X Certificate
(Y) What is the more common name for lactobacillus bulgaricus?
Yoghurt
(Z) What name is given to the chemistry of fermentation in brewing?
Zymurgy