QUESTION 6 1. Let’s say in a deal of 5 cards, there is 50% chance of getting a p
ID: 2949048 • Letter: Q
Question
QUESTION 6
1. Let’s say in a deal of 5 cards, there is 50% chance of getting a pair of any kind. There is a 26% chance of getting four different suits in the deal. There is a 15% chance of getting a pair AND four different suits. What is the probability that you have no pair?
a. 61%
b. 74%
c. 85%
d. 50%
10 points
QUESTION 7
1. Let’s say in a deal of 5 cards, there is 50% chance of getting a pair of any kind. There is a 26% chance of getting four different suits in the deal. There is a 15% chance of getting a pair AND four different suits. What is the probability that you have a pair OR four different suits?
a. 61%
b. 74%
c. 85%
d. 50%
10 points
QUESTION 8
1. A glass jar contains 1 red, 3 green, 2 blues, and 4 yellow marbles. If a single marble is chosen at random from the jar, what is the probability that it is yellow or green?
- A. B.
50%
- A. B.
30%
A.
40%
B.
70%
10 points
QUESTION 9
1. In a math class of 30 students, 17 are boys and 13 are girls. On a unit test, 4 boys and 5 girls made an A grade. If a student is chosen at random from the class, what is the probability of choosing a girl who got an A grade?
a. 5/30
b. 13/30
c. 17/30
d. 18/30
10 points
QUESTION 10
1. In a math class of 30 students, 17 are boys and 13 are girls. On a unit test, 4 boys and 5 girls made an A grade. If a student is chosen at random from the class, what is the probability of choosing a girl OR an A student?
a. 5/30
b. 13/30
c. 17/30
d. 18/30
a. 61%
b. 74%
c. 85%
d. 50%
Explanation / Answer
Answer :
6) d. 50% (p(no pair) = 1-p(pair)= 1-50% = 50% )
7) a. 61% (p(pair OR different suit) = p(pair) + p(different suit) - p(different suit and pair) = 50 + 26 -15 = 61)
8) 70% ( Total marbles= 10; yellow + green marbles= 7; %age = 7/10*100)
9) a. 5/30
girls with A grade = 5
total students = 30
P(girl with grade A )= 5/30
10) c. 17/30
total A students = 9
Total girls = 13
Girls with A = 5
girl or A student = 13+9-5= 17
total students = 30
P(required) = 17/30
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.