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DiKsa [7]
3 years ago
14

A fitness instructor tested the arm strength of members of a fitness dass to compare their scores to the national average. The t

est rated members on a scale from 1, the weakest, to 10, the strongest. The scores of 9 members are shown in the data set below. 4,6,6,7,7,8,8,8,9 Part A What is the value of each measure? Answers: Median: Mode: Range: Part B The mean absolute deviation (MAD) value of the data set is about 1.1. Tyler says that the lower the MAD value, the greater the variability. Is Tyler correct? Explain.
Mathematics
1 answer:
tester [92]3 years ago
3 0

Answer:

A) Median: 7

Mode: 8

Range: 5

B) Tyler is wrong, the greater the MAD value, the greater the variability

Step-by-step explanation:

A) Given the data set: 4,6,6,7,7,8,8,8,9

The median is 7 (the middle point in the ordered list)

The mode is 8 (the most repeated number)

The range is 5 (the difference between the highest and lowest values)

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A copy machine makes 253 copies in 5 minutes and 45 seconds. How many copies does it make per minute?
Tomtit [17]

Answer:

Step-by-step explanation:

it makes 253 copies in 5 mins 45 seconds

that is to say, 253 copies in 345 seconds

In 1 minute (60 seconds) it will make X copies.

Lets draft an equation to easily express and simplify the problem.

253 copies = 345 seconds

X copies = 60 seconds

lets cross multiply and solve for X

Theefore:

x * 345 = 254 * 60

345x = 15,240

divide through by 345

x = 15240 / 345

x = 44.17

therefore, the copying machine makes approximately 44 copies per minutes

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1 gallon=4 quarts=8 pints
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Answer:

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