1. At the beginning of the year, Wayne could type 30 words per minute. By the end of
the year, Wayne was typing 48 words per
minute. Was this an increase or decrease?
What is the percent change?

Increase word per minute and percentage changed are 18 word per minute and 60%

Beginning typing speed = 30 word per minute

Ending typing speed = 48 word per minute

Increase word per minute = Ending typing speed - Beginning typing speed

Increase word per minute = 48 - 30

Increase word per minute = 18 word per minutes

Percentage change = [18 / 30]100

Percentage change = [0.6]100

Percentage change = 60%

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the correct answer is b) histograms can be used to exhibit the shape of distributions. this is because histograms count the frequency of each possible answer, so one is able to see which results are more common and which are less common.

1 is c

2 is a

3 is a

step-by-step explanation: