
Probability (IB SL Analysis)
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Medium
+2
Standards-aligned
Cristi Carlstead
Used 21+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 12 pts
The table represents the probability of guessing correct on a 5 question true-false quiz. Find the probability for at least 4 questions correct.
Tags
CCSS.HSF-LE.A.1C
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The table above shows a television station's advertisement sales. The distribution of sales for one 24-hour day is given. Find the expected value of sales. Round to the nearest hundredth.
31.83
15.68
0.20
1.00
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A stockbroker estimates that at the end of the year, there is a 40% chance a stock will be worth $50, a 35% chance it will be worth $60 and a 25% chance it will be worth $70.
What expected value does this broker assign to this stock's end-of-the-year price?
$58.50
$60.00
$62.50
$180.00
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Find the missing value for P(X=5) in the probability ditribution:
Number of Toys | Probability
0| 0.03
1| 0.16
2| 0.30
3| 0.23
4| 0.17
5| ?
0.11
0.21
0.01
0.31
Tags
CCSS.7.SP.C.5
CCSS.7.SP.C.7
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Laura got a bag full of colorful jelly beans. There were 30 of them: 7 orange, 5 green, 3 blue, 4 red, and 11 yellow. After shaking the bag, she randomly selected two jelly beans from the box.
What's the probability that the first one was yellow and the second one was red?
0.37
0.05
0.14
0.5
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A survey was conducted by the production team of PepsiCo to determine if Malaysians prefer Coke or Pepsi. The following result table was compiled. Use 3 decimals in calculations.
If an Malaysian is selected at a random, what is the probability that the individual is male or prefers Coke?
0.33
0.79
0.21
0.95
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
If P(AIB)=0.40 and P(B)=0.30, find .
0.1
0.4
0.12
0.75
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