Question

A coin is flipped and a spinner is spun simultaneously. The spinner is divided into six equally sized sections labeled with 1, 2, 3, 4, 5, 6. What is the probability of flipping a tail and landing on 5?
Answer
If two events are independent, the probability of both events occurring is the product of their individual probability. Events A and B are independent with P(A)=0.3 and P(B)=0.25. What is the probability of events A and B happening at the same time? Write your answer in decimal form.
Answer
Use the table to answer the question.

Studying Online

Girls Boys Row total
Want the option to keep studying online 10 3 13
Don’t want the option to keep studying online 5 7 12
Column total 15 10 25What is the probability of selecting a student who wants the option to keep studying online? Write your answer in percent form.
Answer
A money envelope contains five $10 bills, ten $20 bills, and fifteen $50 bills. Sandra randomly selects two bills without returning the first bill. What is the probability of getting a $10 bill then a $50 bill? Write your answer in the simplest form of fraction
Answer
H - shaded
O - not shaded
N - not shaded
E - shaded
S - shaded
T - not shaded

A spinner labeled with the letters of the word HONEST is to be spun once. Describe the probability of landing on an unshaded section in the sample space.

A: 1/6

B: 3

C: 1/3

D:1/2
Answer
Which set of events is dependent?(1 point)
Responses

rolling a number cube and flipping a coin
rolling a number cube and flipping a coin

choosing a marble from a box, replacing it, then choosing another marble
choosing a marble from a box, replacing it, then choosing another marble

the event of getting two heads when flipping two fair coins
, the event of getting two heads when flipping two fair coins

choosing a ball from a bag and then choosing another ball without replacing the first
Answer
A basket of fruits contains 5 bananas, 8 mangoes, and 7 apples. Two fruits are randomly selected without replacement. Calculate the probability of selecting an apple and a banana.(1 point)
Responses

776
Start Fraction 7 over 76 End Fraction

21190
, Start Fraction 21 over 190 End Fraction

780
, Start Fraction 7 over 80 End Fraction

35
, Start Fraction 3 over 5 End Fraction
Answer
A basket of fruits contains 10 bananas, 5 mangoes, and 5 apples. A fruit is selected at random. Calculate the probability of selecting an apple or a banana. Express the answer in percent form.(1 point)
Responses

75%
75%

12.5%
12.5%

0
0

62.5%
Answer
Use the table to answer the question.

Studying Online

Girls Boys Row total
Want the option to keep studying online 10 3 13
Don’t want the option to keep studying online 5 7 12
Column total 15 10 25
Which mathematical sentence can be used to calculate the probability of selecting a student who wants the option to keep studying online or is a boy?

(1 point)
Responses

1325+1025
, Start Fraction 13 over 25 End Fraction plus Start Fraction 10 over 25 End Fraction

1325×1025
, Start Fraction 13 over 25 End Fraction times Start Fraction 10 over 25 End Fraction

325
Start Fraction 3 over 25 End Fraction

1325+1025−325
Start Fraction 13 over 25 End Fraction plus Start Fraction 10 over 25 End Fraction minus Start Fraction 3 over 25 End Fraction
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Answer
Use the table to answer the question.

Studying Online

Girls Boys Row total
Want the option to keep studying online 10 3 13
Don’t want the option to keep studying online 5 7 12
Column total 15 10 25
Which mathematical sentence can be used to calculate the probability of selecting a student who wants the option to keep studying online or is a boy?


A: Start Fraction 13 over 25 End Fraction plus Start Fraction 10 over 25 End Fraction

B: Start Fraction 13 over 25 End Fraction times Start Fraction 10 over 25 End Fraction

C: Start Fraction 3 over 25 End Fraction

D: Start Fraction 13 over 25 End Fraction plus Start Fraction 10 over 25 End Fraction minus Start Fraction 3 over 25 End Fraction
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