NeSA Data Analysis and Statistics

Question 1

A class recorded the following test scores: 70, 85, 90, 85, 75, 85, 60. What is the mode?

Accepted Answer

85

Answer

75

Answer

80

Answer

70

Question 2

On a bar graph showing student test results, the x-axis represents subject names. What does the y-axis most likely represent?

Accepted Answer

Number of students or scores

Answer

Student names

Answer

Subject descriptions

Answer

Dates of tests

Question 3

What is the median of the data set: 4, 7, 10, 13, 19?

Accepted Answer

10

Answer

7

Answer

13

Answer

11

Question 4

A pie chart shows that 40% of students prefer math and 35% prefer reading. What percentage prefer other subjects?

Accepted Answer

25%

Answer

15%

Answer

20%

Answer

30%

Question 5

Which measure of central tendency is most affected by an extremely high or low value (outlier)?

Accepted Answer

Mean

Answer

Mode

Answer

Median

Answer

Range

Question 6

A line graph shows temperature each month for a year. Which conclusion can best be drawn from a line graph?

Accepted Answer

How temperature changes over time

Answer

The most common temperature

Answer

The total temperature for the year

Answer

The percentage of warm months

A class recorded the following test scores: 70, 85, 90, 85, 75, 85, 60.What is the mode?