ACET (Actuarial Common Entrance Test) Statistics: Questions 76 - 82 of 201
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Question number: 76
» Measures of Location » Median
Question
Weight of eight boys in kg is noted as:
Find the median weight.
Choices
Choice (4) | Response | |
---|---|---|
a. | 72 | |
b. | 71 | |
c. | 70 | |
d. | 71.5 |
Question number: 77
» Discrete Distributions » Poisson
Question
If X follows Poisson distribution such that Find the mean & variance
Choices
Choice (4) | Response | |
---|---|---|
a. | 2,1 | |
b. | 2,2 | |
c. | 1,2 | |
d. | 1,1 |
Question number: 78
» Types of Data » Qualitative and Quantitative Data
Question
Which of the following is a one dimensional diagram?
Choices
Choice (4) | Response | |
---|---|---|
a. | Bar diagrams | |
b. | Histograms | |
c. | Breadth diagrams | |
d. | Frequency Polygon |
Question number: 79
» Continuous Random Variables » Probabilities
Question
Out of 8 consonants and 3 vowels, how many words of 3 consonants and 2 vowels can be formed?
Choices
Choice (4) | Response | |
---|---|---|
a. | 16800 | |
b. | 20,000 | |
c. |
| |
d. | 20,160 |
Question number: 80
» Correlation and Regression » Covariance
Question
If the regression coefficient of b in is equal to zero, then the regression line will
Choices
Choice (4) | Response | |
---|---|---|
a. | Pass through the origin | |
b. | Neither intersect X axis nor Y axis | |
c. | Be parallel to the X axis | |
d. | Be parallel to the Y axis |
Question number: 81
» Probabilities » Independence of Events
Question
A committee of four has to be formed from among three economists, 4 engineers, 2 statisticians and 1 doctor. What is the probability that each of the four professions is represented on the committee?
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.1143 | |
b. | 0.24 | |
c. | 0.1742 | |
d. | 0.3 |
Question number: 82
» Types of Data » Stem-And-Leaf
Question
Height of 20 students in centimetres is displayed through the following stem and leaf plot-
Stem | Leaf |
14 | 3 5 6 |
15 | 4 8 9 |
16 | 0 0 2 5 5 5 7 |
17 | 1 2 2 5 6 |
18 | 2 6 |
Which of the following is incorrect?
Choices
Choice (4) | Response | |
---|---|---|
a. | 15 % of students have height greater than 175cm | |
b. | The range of the height is 43 cm | |
c. | The modal height is 172 cm | |
d. | The median height is 165 cm |