U7 - Statistics Practice (Dot Plots,Histograms)

Front

The table on the left shows the number of customers that visit a store at different times of the day. Which histogram correctly displays the given data?

Back

Front

How will the mean age of members at the community gym change if the outlier in the data is removed?

Back

The mean age of members will decrease.

Front

Which measure of the class's test results did Shania's score of 99 most change? Scores: 68, 92, 74, 75, 86, 90, 92, 81, 60, 82, 77, 80

Back

Range

Front

The ages of the US Presidents inaugurated during the 1900s are: 42, 51, 56, 55, 51, 54, 51, 60, 62, 43, 55, 56, 61, 52, 69, 64, 46 What is wrong with the box-and-whisker plot of these data?

Back

The value of Q3 is incorrect.

Front

Calculate the mean for each class period. Which class has the highest mean for one repetition maximum (1RM)? Options: period 1, period 2, period 3, period 4.

Back

period 3

Front

Which of these correlations represents causation?

• As the sales of a product increase, its price increases.
• The weight of a person increases with an increase in the person’s height.
• As the speed of a vehicle increases, the time taken to cover a distance decreases.
• As the sales of ice cream in the summer increase, sales of sunglasses at a store also increase.

Back

As the speed of a vehicle increases, the time taken to cover a distance decreases.

Front

The total number of girls enrolled is equal to the number of boys. There are twice as many boys enrolled in Algebra 1 as boys enrolled in Geometry. Which statement is correct? Options: There are 68 boys enrolled in Algebra 1, There are 12 boys enrolled in Algebra 2, There are 92 girls enrolled in Algebra 1, There are 160 students enrolled in both Algebra 1 and Geometry.

Back

There are 12 boys enrolled in Algebra 2.

Front

Determine the marginal relative frequency of students taking French based on the provided two-way frequency table.

Back

20%

Front

The scatter plot represents the test scores of 21 students and the number of hours they studied. Which function best fits the data? Options: y = 7x + 41, y = 41x + 7, y = 6x + 20, y = 20x + 6

Back

y = 7x + 41

Front

Correlation between the number of tickets and hotdogs sold at King Stadium with a correlation coefficient of 0.993.

Back

There is a strong linear correlation.