Multiple Choice Questions

Question 1

Which of the following measures of central tendencies are not equal in a symmetrical distribution?

a) mean and median b) mode and median c) mean and mode
d) none of the above

Answer 1

a) mean and median

Question 2

Which of the following moves with or follows the direction of the skew?

a) median
b) z score
c) mean
d) mode

Answer 2

a) median

Question 3

Type I error involves rejecting the null hypothesis when it is true.

a) true
b) false

Answer 3

a) true

Question 4

The term ‘significance’ is:

a) overused
b) does not mean important or remarkable
c) suggests that the outcome of the study was not to due to chance
d)the study can be repeated to produce the same results
e) all of the above
f) none of the above

Answer 4

c) suggests that the outcome of the study was not due to chance

Question 5

The jury decides that the suspect for a robbery case is not guilty when in fact the suspect did commit the crime. The jury had made what type of error?

a) Type a
b) Type I
c) Type II
d) sampling error

Answer 5

c) Type II

Question 6

A basket contain 5 black marbles, 4 red marbles, 8 yellow marbles, and 10 silver marbles. What is the probability that a single ball chosen will be red or silver?

a) 0.52
b) 0.055
c) 0.052
d) 0.55

Answer 6

a) 0.52

Question 7

Assume 10% of people are bald, 50% are males, 20% have moustaches, and 15% have blue eyes. What is the probability that the next person will be a bald female with anything other than blue eyes?

a) 0.43
b) 0.043
c) 0.85
d) 0.085

Answer 7

b) 0.043

Question 8

A hypothesis can be defined as:

a)a supposition.
b) and idea assumed to be true for the moment.
c) something that is tested via experiment.
d) a statement about a population parameter.
e) all of the above.

Answer 8

e) all of the above

Question 9

If 9 babies were born today, what is the probability of 7 babies being male?

a) 0.0703
b) 0.0722
c) 0.7440
d) 7.4400

Answer 9

a) 0.0703

Question 10

The class average for a multiple choice test out of 30 was 20±5. One individual scored a mark of 25/30. Calculate the percentile for this individual.

a) 84th percentile
b) 48th percentile
c) 34th percentile
d) 16th percentile

Answer 10

a) 84th percentile

Question 11

You want to know how many courses are being offered by each of the four departments in the Faculty of Health. You wish to make a graphical display to compare these number across departments. A good choice would be:

a. histogram
b. line graph
c. scatter plot
d. bar plot

Answer 11

d. bar plot