Basic Statistics Chapter 6 Math 10th Class MCQ Test Preparation Federal

Total Questions: 20

Total Marks: 20

Time: 20 Mins

Question # 1

Suppose that we have observed the following n = 5 resting pulse rates: 64 , 68 , 74 , 76 , 78 . Find the standard deviation.

Question # 2

Find the geometric mean of the following data:

Geometric Mean = 20.06 marks.
Geometric Mean = 22.06 marks.
Geometric Mean = 32.06 marks.
Geometric Mean = 42.06 marks.
Geometric Mean = 52.06 marks.

Question # 3

Cumulative frequency distribution which is 'greater than' type is correspondent to _____.

Question # 4

The following table shows the distribution of the number of hours worked each week (on average) for a sample of 100 community college students. How many classes are there in this data?

Question # 5

Histogram and frequency polygon are two graphical representations of:

Question # 6

The following frequency distribution is classified as _____.

Question # 8

If scatter or dispersion in distribution is high on each side then this indicates

Question # 10

A chemistry experiment calls for a 30 % solution of copper sulfate. Kendra has 40 milliliters of 25 % solution. How many milliliters of 60 % solution should she add to make a 30 % solution?

Question # 11

Each of the nine friends guessed the number of marbles in a jar. When the answer was revealed they found they had guessed well (and one was the winner!) Here is how close they each got: − 9 , − 7 , − 4 , − 1 , 0 , 2 , 7 , 9 , 12 (A negative number shows an underestimate, a positive number shows an overestimate.) What was the standard deviation of their errors?

Question # 12

The following frequency distribution is classified as______.