The table shows information about the number of points scored by 30 students in a quiz.
Number of points
0
Frequency
4
a) What is the modal number of points?
(1)
1
3
IN
5
7
b) Work out the total number
of points scored.
(2)
4
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5
-
5
Total marks: 3

can you give me more detail on this! ?

step-by-step explanation:

250

step-by-step explanation:

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.