Test:
Statistics Foundation II - Ambitious
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Question 1:
Find the mean value in the following data set:
$17,25,2,21,29,8,36,5,11,19$
A
$20.4$
B
$18.9$
C
$17.3$
D
$22.7$
Question 2:
Find the range in the following data set:
$115,36,118,-12,33,-10,98,106,124,119$
A
$136$
B
$134$
C
$112$
D
$124$
Question 3:
Bar chart below represents number of rainy days over a month in a group of towns:
How many towns are compared?
A
$41$
B
$25$
C
$37$
D
$43$
Question 4:
Using the bar chart from question 3, find the modal number of rainy days
A
$4$
B
$7$
C
$6$
D
$5$
Question 5:
Mean score of a basketball team in
$12$
games is
$93$
points. What is the total number of points scored?
A
$1206$
B
$1012$
C
$1116$
D
$954$
Question 6:
Continuing the question 5, the mean score of
$16$
games is
$85$
points. What is the mean score of the last
$4$
games?
A
$78$
B
$53$
C
$61$
D
$81$
Question 7:
The table below shows the scores of
$90$
basketball games. Which of the graphs below represents the table?
Score
Frequency
$50<x\le 60$
7
$60<x\le 70$
12
$70<x\le 80$
23
$80<x\le 90$
25
$90<x\le 100$
15
$100<x\le 110$
8
A
B
C
D
Question 8:
Using the table from the question 7, calculate the mean score of the basketball game
A
$80.88$
B
$75.75$
C
$83.23$
D
$90.66$
Question 9:
Which of the stem-and-leaf diagrams represents the following data:
$11,5,21,23,31,41,7,18,15,27,24,29,32,35,36,23$
A
1
$\mathrm{1,5,8}$
2
$\mathrm{1,3,4,7,9}$
3
$\mathrm{1,2,5,6}$
Key: 1|1 represents 11
B
0
5, 7
1
1, 5, 8
2
1, 3, 4, 7, 9
3
1, 2, 5, 6
Key: 0|5 represents 5
C
1
5, 7
2
1, 5, 8
3
1, 3, 4, 7, 9
4
2, 5, 6
Key: 1|5 represents 5
D
0
$\mathrm{5,7}$
1
$\mathrm{1,5,8}$
2
$\mathrm{1,3,4,7,9}$
3
$\mathrm{2,5,6}$
Key: 0|5 represents 5
Question 10:
Using the stem-and-leaf diagram below find the median:
0
$\mathrm{1,5,8}$
1
$\mathrm{1,1,2,6}$
2
$\mathrm{3,3,3,7,8,9,9}$
3
$\mathrm{2,4,5,5,5,5}$
4
$\mathrm{0,2,3,4,7,7,8,8}$
A
$32$
B
$29$
C
$30$
D
$30.5$
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