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Maksim231197 [3]
2 years ago
5

Mr. Hans wants to give an award to the student with the best jump rope rate. Linda can jump rope 120

Mathematics
1 answer:
Gelneren [198K]2 years ago
4 0

Answer:

c)  Mike receives the award for being the best at jumping rope.

Step-by-step explanation:

Here, according to the question

Jumping rate of Linda = 120 times in 4 minute

So, number of jumps Linda does per minute = (120/4) = 30

So, Jumps per minute of Linda is 30.

Jumping rate of Carl  = 315 times in 9 minute

So, number of jumps Carl does per minute = (315/9) = 35

So, Jumps per minute of Carl is 35.

Jumping rate of Mike = 252 times in 7 minute

So, number of jumps Mike does per minute = (252/7) = 36

So, Jumps per minute of Linda is 36.

Now if we compare the <u>jumps per minute</u> of Linda , Carl and Mike, weget that Mike has the best rate of 36 jumps per minute.

Hence, Mike receives the award for being the best at jumping rope.

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Group 1     0.25          0.75

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Step-by-step explanation:

Since we have given that

Number of people of A in group 1 = 15

Number of people of B in group 1 = 45

Total number of people in group 1 is given by

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Total number of people in group 2 is given by

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Relative frequency of people of B in Group 2 is given by

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Hence,        A                 B

Group 1     0.25          0.75

Group 2    0.44          0.56

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