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WorksheetsGrade 10 End of Unit 2 (Data Analysis) Assessment
Total questions: 25
Worksheet time: 36mins
For the given Grouped Freq. Dist. Find the Midpoints
4, 14, 24, 34, 44
5, 15, 25, 35, 45
4.5, 14.5, 24.5, 34.5, 44.5
None of the above
What does the value for "n" stand for in the given GROUPED freq. distribution
Total classes
Sum of midpoints
cumulative frequency
total frequency
For the following data find the Standard Deviation
20.212
13.004
14.112
13.997
The number of miles that Jenna cycled each week for a 7-week period is shown:
36, 42, 28, 52, 48, 36, 31
What is the IQR number of miles Jenna cycled?
24
17
6
52
Find the IQR of the given data 21.5 cm, 63.7 cm, 18.9 cm, 34.1 cm, 75.6 cm, 30.8cm.
44 cm
43 cm
42.2 cm
42.76
What is the standard deviation of the data?
(a)
What is the standard deviation of the data?
(a)
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?
FInd the Mean of the given data
20.2
20.7
14.1
13.99
0, 10, 29, 56, 90, 100
10, 10, 29, 66, 90, 100
0, 10, 29, 66, 90, 91
0, 10, 29, 66, 90, 100
0, 10, 29, 66, 80, 100
Estimate how many balls had a weight of 130 g or more.
78
22
11
32
A TV company surveyed 88 of its employees to find out how much time they spend travelling to work on a given day. The results of the survey are shown in the following cumulative frequency diagram.
Only 10% of the employees spent less than K minutes travelling to work. Find the value of K.
K =15 minutes
K = 20 minutes
K = 10 minutes
K = 25 minutes
This cumulative frequency graph shows the speeds in kmh-1 of cyclists passing a certain point on a race track.
Write down the 65th percentile
21 kmh-1
20 kmh-1
30 kmh-1
15 kmh-1
This cumulative frequency graph shows the speeds in kmh-1 of cyclists passing a certain point on a race track.
Find the median speed of the cyclists.
21 kmh-1
19 kmh-1
30 kmh-1
15 kmh-1
Using the given double box-and-whisker plot, determine the percent of the boys and then the percent of the girls who are 66 inches or shorter.
25%, 75%
75%, 25%
50%, 75%
50%, 25%
Calculate the Lower Quartile of this distribution.
(Write the figure only)
(a)
Chloe counted the number of cars that were parked on her road at 8:00 pm on 11 successive days. She presented her data as a list: 3, 8, 12, 6, 5, 6, 7, 9, 4, 10, 8.
She was surprised to find that the minimum number of cars that she counted was 3 and that the maximum number of cars was 12.
Chloe draws a box plot of the data. Which of the following is correct?
What percentage of days was the temperature between 22∘C and 24∘C?
(Leave out the % in your answer)
(a)
What are the quartiles for the following set of numbers?
8, 11, 20, 10, 2, 17, 15, 5, 16, 15, 25, 6
Q1 = 15, Q2 = 16, Q3 = 15.5
Q1 = 6, Q2 = 13, Q3 = 17
Q1 = 7, Q2 = 13, Q3 = 16.5
Q1 = 8, Q2 = 13, Q3 = 16
