subject
Mathematics, 15.01.2021 21:40 kbrxxzy

I NEED HELP ASAP Daniela recorded the low temperatures during the school day last week and this week. Her results are shown in the table below.

Low Temperatures during the School Day This Week and Last Week
Low Temperatures
This Week (Degrees Fahrenheit)

42

38

45

46

39
Low Temperatures
Last Week (Degrees Fahrenheit)

56

58

52

62

62

Daniela used the steps below to find a relationship between the difference in the mean temperatures and the mean absolute deviations of the data sets.

This Week Last Week

Step 1
Find the mean.
StartFraction 42 + 38 + 45 + 46 + 39 over 5 EndFraction = 42
Find the mean.
StartFraction 56 + 58 + 52 + 62 + 62 over 5 EndFraction = 58

Step 2
Find the mean absolute deviation.
StartFraction StartAbsoluteValue 42 minus 42 EndAbsoluteValue + StartAbsoluteValue 38 minus 42 EndAbsoluteValue + StartFraction StartAbsoluteValue 45 minus 42 EndAbsoluteValue + StartFraction StartAbsoluteValue 46 minus 42 EndAbsoluteValue + StartFraction StartAbsoluteValue 39 minus 42 EndAbsoluteValue over 5 EndFraction = 2.8
Find the mean absolute deviation.
StartFraction StartAbsoluteValue 56 minus 58 EndAbsoluteValue + StartAbsoluteValue 58 minus 58 EndAbsoluteValue + StartFraction StartAbsoluteValue 52 minus 58 EndAbsoluteValue + StartFraction StartAbsoluteValue 62 minus 58 EndAbsoluteValue + StartFraction StartAbsoluteValue 62 minus 58 EndAbsoluteValue over 5 EndFraction = 3.2
Step 3 Find the ratio of the differences of the means compared to the mean absolute deviation.
StartFraction 42 over 2.8 EndFraction = 15 Find the ratio of the differences of the means compared to the mean absolute deviation.
StartFraction 58 over 3.2 EndFraction = 18.125
Step 4 The difference in the means is about StartFraction 15 + 18 over 2 EndFraction = 16.5 times the mean absolute deviations.

In which step did Daniela make the first error?
Step 1
Step 2
Step 3
Step 4

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 19:00
Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?
Answers: 1
question
Mathematics, 21.06.2019 21:00
Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]
Answers: 1
question
Mathematics, 22.06.2019 00:00
Which of the following statements are true about the graph of f (x) = 1/4 coz ( x + π/3) - 1? select two of the following that apply.
Answers: 1
question
Mathematics, 22.06.2019 00:00
Round each decimal to the nearest thousandth. a. 5.39562 b. 0.12345 c. 5634 d. 18.93763
Answers: 1
You know the right answer?
I NEED HELP ASAP Daniela recorded the low temperatures during the school day last week and this we...
Questions
question
English, 29.09.2019 09:30
question
Health, 29.09.2019 09:30
question
Mathematics, 29.09.2019 09:30
Questions on the website: 13722367