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riadik2000 [5.3K]
4 years ago
14

Please answer...it's due soon, it's 50 points..! The first table shows the measures of variability for finish times of 30 runner

s in the 100-meter dash. Calista’s finish times are recorded in the second table. She cannot tell which number is for which year. Based on the data table, when did Calista likely record Finish Time A? Explain.
Last Year's Running Time Mean: 16.2s

Last year's MAD: 1.2

This Year's Running Time Mean: 14.7s

This year's MAD: 1.9


A- This year, because finish times were less last year, on average, as compared to last year.

B- Last year, because finish times were less last year, on average, as compared to this year.

C- This year, because finish times were greater last year, on average, as compared to last year.

D- Last year, because finish times were greater last year, on average, as compared to this year.
Mathematics
1 answer:
r-ruslan [8.4K]4 years ago
7 0

Answer:

the answer is Letter B because I had this problem on a test before and it was B

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
A scale drawing has a scale of 1/4 centimeters equal to 10 meters. What is the unit rate of centimeters to meters
lozanna [386]

Answer:

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Step-by-step explanation:

The problem statement isn't clear as to which unit is 1 in your unit rate. If it is 1 cm, you can find the unit rate by multiplying the reationship by 4:

... 4 × (1/4 cm to 10 m) = 1 cm to 40 m

If it is 1 m, you can find the unit rate by multiplying the relationship by 1/10:

... 1/10 × (1/4 cm to 10 m) = 1/40 cm to 1 m

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<em>Additional comment on the problem</em>

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3 years ago
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