9) A pile of nuts and bolts of various size in a bucket can represent a) Discret

Question

9) A pile of nuts and bolts of various size in a bucket can represent a) Discrete data b) continuous data irrelevant data d) unusable data 10) In a radio station contest every S0 caller can win a T-Shirt what type of sampling is this a) Probability b)Random c)Convenience d) Systematic 11) To select a committee of male and female high school students, females have 52% chance of being picked, what type of sampling is being used? Random b) systematic c) probability a) d) cluster 12) An example of convenience sampling is: a) Census c) picking every 5h man d) doing nothing b) drawing name from a hat 13) A sample is taken by dividing the population in two subdivisions, this method of sampling is called: a) Random b) stratified c) judgment d) probability 14) The GPAs of college student are to be studied, what do GPAs represent in the study: a) Sample b) Variable c) Data d) subset 15) A group students were asked to do as many pushups and sit up in 5 minutes and results were recorded, this activity is called: a) Fun & games b) group work c) experiment d) mandatory project or the following sets of data find the mean, mode, midrange and median 435, 567, 667, 786, 567, 354, 890, 980, 990, 556, 201 20 points) 1:

Explanation / Answer

10)
Answer is C)

A convenience sample is made up of people who are easy to reach

12)

answer is C)

13)
Answer is B)
stratified sampling, the researcher divides the population into separate groups, called strata.

15)
answer is B)

16)
Arrange the data in ascending order
201 , 354 , 435 , 556 , 567 , 567 , 667 , 786 , 890 , 980, 990

mean = sum of all number/ total number
Mean = 635.7273

Mode is the repeated number from the data
Mode = 567

midrange

Highest value = 990 , lowest value = 201
Midrange = ( Highest + lowest) value / 2
= ( 990 + 201) / 2 = 595.5

Median is the middle number of data
Median = 567

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