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MM Chapter 9 Probability

Authored by Daniella Gentile

Mathematics

9th - 12th Grade

Used 1+ times

MM Chapter 9 Probability
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22 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

If the probability of Chris scoring 50 or more marks in the exam is 0.7, then the probability he scores less than 50 marks is:

0.3

0.4

0.7

0.8

2.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

A spinner is coloured red, yellow, blue and green. When spun the probability that it lands on red is 0.1, yellow is 0.2 and blue is 0.4. What is the probability that it lands on green?

0.1

0.2

0.3

0.4

3.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

Phillip is making a sign, and has cut the letters of the word THEATRETTE out of wood and placed them in his toolbox. If a letter is selected at random from the toolbox, then the probability that it is a T is

4.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

Of a group of 25 people in a restaurant, three chose a vegetarian meal, five chose fish, ten chose beef and the rest chose chicken for their main course. What is the probability that a randomly chosen diner chose chicken?

5.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

A square has side length of 4 metres. Inside the square is a circle of radius 1.5 metres. If a dart thrown at the square is equally likely to land at any point inside the square, then the probability that it will land outside the circle is closest to:

  1. 0.442

  1. 0.295

  1. 0.558

  1. 0.250

6.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

An experiment consists of tossing a coin and then rolling a fair six-sided die. What is the probability of observing a head and a β€˜six’?

7.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

If 𝐴 and 𝐡 are events such that Pr(𝐴)=0.35, Pr(𝐴∩𝐡)=0.18 and Pr(𝐡)=0.38, then Pr(𝐴βˆͺ𝐡) is equal to

  1. 0.73

  1. 0.15

  1. 0.21

  1. 0.55

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