Page 51 - CT&AI_CLasa_7_Part_1

7. A bar graph shows the number of books sold Side 3: 12 times Side 4: 9 times
in four genres: Mystery, Sci-Fi, Romance, and Side 5: 11 times Side 6: 10 times
History. The bar for Mystery is twice as tall as Which of the following options correctly
History. The bar for Romance is 10 units shorter
than Mystery. The bar for Sci-Fi represents represents the mean number of times each
the Mean of the other three categories. If the side appears? (Pattern Recognition)

total number of books sold is 100, how many (a) 10 8129 11 10 933
.
History books were sold? (Data Analysis) 6

10 8129 11 10
(a) 15 (b) 17 (b) 10
5
(c) 19 (d) 21 10 8129 11 10

(c) 857
.
computational thinking quest 8. A group of students took a survey on their 7
preferred fruit. The results were: 5 students 10 8129 11 10

like apples, 3 like bananas, 6 like oranges, (d) 4 95 .
Tick ( ) the correct option. and 2 like grapes. Which dot plot accurately
represents this data? (Analytical Thinking) 10. A bar graph shows the scores of 5 students.
The bar for the 5th student is missing.
Student 1: 80, Student 2: 75, Student 3: 90
(a) Student 4: 85, Student 5: ?
Apples Bananas Oranges Grapes 100 ?
90
80
70
(b) 60
Score 50
40
Apples Bananas Oranges Grapes 30
20
10
0
(c) Student 1 Student 2 Student 3 Student 4 Student 5

Apples Bananas Oranges Grapes
Students
If Student 5’s bar is added, the new Mean
(d) of the group becomes equal to the original
Median of the first 4 students. What is the
Apples Bananas Oranges Grapes score of Student 5? (Data Analysis)
9. You roll a fair six-sided die 60 times, and
you record the number of times each side (a) 80 (b) 81.5
appears. The results are as follows: (c) 82.5 (d) 85
Side 1: 10 times Side 2: 8 times

In a group of n people, the mean age is 21. When a 22nd person joins the group,
the mean age decreases.
1. What was the maximum possible age of the 22nd person?
2. What does this tell you about the original number of people n?

(a) 21, 22 (b) 20, 21

(c) 20, 22 (d) 18, 21

Connecting the Dots 49