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[1] The scale of measurement for the variable eye color is________________a. Ordinal

b. Nominal

c. Interval

d. Ratio

[2] The scale of measurement for the variable weight of new born babiesis________________a) Ordinal

b) Nominal

c) Interval

d) Ratio

[3] The most appropriate diagram to represent data on blood glucose level of 100patient is____a) Bar chart

b) Histogramc) Multiple bar charts

d) Pie chart

[4] Cumulative frequency distribution are represented in graphic form by__________a) Histogram

b) bar chart

c) Ogive curvesd) scatter plot

[5] The average of numbers x, y and z is 7 and average of x and y is 5. Value of zisa) 7

b) 8

c) 11d) 4

[6] Data was recorded on number of seeds per fruit for two new varieties V-1 andV-II. For determining better variety the appropriate measure is.a) Mean

b) CVc) Mode

d) Range

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[7] A library has 800 books. The average cost of 600 books is $4 and the averagecost of remaining books is $5. Average cost of a book isa) 4

b) 4.25c) 4.5

d) none of a, b and c

[8] For the data set {9, 7, 8, 10, 40, 5, 6, 8, 9, 8}, median equalsa) 40

b) 8c) 22.5

d) 8.5

[9] Distribution of ages of college students has mean 23 years and sd 3. Thesecond number namely 3, is measured in units ofa) years

b) squared yearsc) nothing, it is a pure number and no units are needed

d) depends on the value

[10] Consider the following table.Data on time spent by a fox at a food sourceTime in minutes Frequency11-20 221-30 1531-40 1241-50 10

51-60 761-70 371-80 1Total 50Frequency curve of the above data is best described asa) unimodal

b) symmetric

c) bimodal and asymmetric

d) unimodal and skewed to the right

[11] The average of 10 observations is 35.5.Later it was found that an observation

45 was misread as 54. The corrected average isa) 34.6

b) 43.6

c) 35.5

d) 45

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[12] The average of 5 observations is 20. When a constant c is added to eachobservation the average changes to 24. It gives that value of c is ___________.a) 20

b) 4c) -4

d) 24

[13] Standard deviation of 20 observations is 25, if each observation is increasedby 10 then SD will change toa) 35

b) 5

c) 2.5

d) 25

[14] The average wage of 100 workers in a factory running in two shifts of 60 and40 workers is 38. The average wage of 60 workers in morning shift is 40. Then the

average wage of 40 workers in the evening shift isa) 35

b) 38

c) 36

d) 27

[15] In variance, the average distance of the individual observations is calculatedfroma) A.M.

b) Median

c) Mode

d) SD

[16] For following data on survival times, 1.4, 1.7, 2.3, 2.5, 3.2, 3.8, 38.whichaverage is appropriate? ______________.a) Mean

b) Mode

c) Mediand) geometric mean

[17] The mean systolic blood pressure of 100 individuals is 128 and SD is 16. then

percent coefficient of variation equalsa) 0.16b) 0.125

c) 12.5d) None of these

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[18] Data is recorded on diagnoses of patient seen in emergency department ofcity hospital. In this case which average is appropriate? __________a) Mean

b) Modec) Median

d) Combined mean

[19] The relative measure of dispersion isa) Range

b) coefficient of rangec) SD

d) Variance

[20] To compare consistency of two players A and B, use of -------- is appropriatea) A.M and mode

b) A.M and S.D

c) r(A, B)d) mean deviation

[21] Scatter diagram is useful for showinga) dispersion

b) central tendency

c) joint variation

d) Association

[22] Study the following statements:Statement A: As x increases, y increasesStatement B: As x decreases, y decreasesStatement C: As x increases, y decreasesStatement D: As x decreases, y increasesWhich of the following is true?a) Statement A is true, but statement B is false

b) Statement A is false but statement B is true.

c) Both statements A and B are true.

d) Both statements A and B are false

[23] I have a frequency distribution of students by their religion. It makes no

sense to preparea) cumulative frequency table

b) cumulative relative frequency table

c) percentile rank table

d) any of the above

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[24] Statistics is a science of study of characteristics ofa) An individual

b) An average behavior of all individuals in the sample

c) Population characteristics using sample data.

d) all of these

[25] For two data sets of 10 and 20 observations values of mean and standarddeviations are respectively 100, 15 and 120, 20. Combined variance of the twodata sets will be approximatelya) 18.33

b) 2250

c) 341.67d) 306.25

[26] A car runs for t1 hours at v1kmph, t2 hours at v2 kmph. The average speed ofthe car for entire journey is

a) (v1t1 + v2t2)/2b) (v1+v2)/2

c) (v1t1 +v2t2)/ (t1+t2)

d) (v1+v2) / (t1+ t2)

[27] If everyone paid income tax equal to 10% of income, value f r for income andtax paid will be close toa) 0.00

b) -1.00

c) 1.00

d) None of the above

[28] Select the pair with the strongest relationship.a) Height and weight of newborn infants

b) Height and weight of basketball players

c) Height of adults in inches and in centimeters

d) Heights of twins

[29] Decide without calculations which set has largest variability (all have thesame mean namely 50)a) 40, 40, 50, 60, 60

b) 40, 45,50,55,60c) 40, 43,50,58,60

d) 40, 49, 50, 51, 60

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[30] Which of the following is NOT a similarity between correlation coefficient andstandard deviation?a) based on all observations

b) range of possible values is limitedc) widely useful

d) none of the above

[31] Find the odd man outa) range, s.d., C.V.

b) mean, median, mode

c) mean, correlation coefficient, moded) nominal, interval, ratio