MATHEMATICS MIDDLE SCHOOL

On the first of each month, Stacie runs a 5k race. She keeps track of her times to track her progress. Her time in minutes is recorded in the table: Jan 41.55 July 36.38 Feb 42.51 Aug 38.48 Mar 43.01 Sept 41.87 Apr 39.76 Oct 51.32 May 37.32 Nov 42.59 June 35.28 Dec 43.71 Determine the difference between the mean of the data, including the outlier and excluding the outlier. Round to the hundredths place. 1.21 0.93 40.98 40.22

Answers

Answer 1

Answer:

The difference between mean with outlier and mean without outlier is 0.93

Step-by-step explanation:

Total months are 12

So,

n=12

Sum of all values = 493.78

The mean is given by:

$Mean=(Sum\ of\ values)/(No.\ of\ values)\n=(493.78)/(12)\n=41.148\ minutes$

The mean with outlier is: 41.148

Now to calculate the mean without outlier

We will subtract the outlier value from total sum

The outlier is 51.32 so the new sum will be: 493.78-51.32 =442.46

Total number of values = 12-1 = 11

The mean without outlier will be:

$Mean\ without\ outlier=(442.46)/(11) =40.223$

Now the difference between both means is:

$41.148-40.223=0.925 => 0.93$

The difference between mean with outlier and mean without outlier is 0.93

Keywords: Mean, Average

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Answer 2

Answer:

Answer:

It would be 0.93

Step-by-step explanation:

Trust me, I got it right on my test FLVS.

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What number is 100 less than 694

Answers

Easy!
694
-
100
--------
594

the answer is 594 because all you have to do is take 1 away from the 6.

Please help me on my homework ASAP.

Answers

For #10, the answer is 38x40 which equals 1,520.

For #12, you divide the shape into a square and a rectangle then find the area of each shape. After that, you add them together. 4x4=16 10x4=40 40+16= 56.

# 10 is 1520 because 40*38=1520
# 12 is 16 meters for the square because 4*4=16
4 meters for the rectangle because 10*4=40

Hope this helps
Good luck on the homework

Write a number less than 69?

Answers

Answer:

Step-by-step explanation:

the answer is NICE.....

5/10 + 8/100= ?
13/100, 40/100, 58/100, 6/10

Answers

Answer:

58/100

Step-by-step explanation:

The first step is to make the two fractions have a common denominator. 5/10=50/100. Now you can add the two fractions together. 50/100+8/100=58/100. Hope this helps!

58 / 100 is the answer

Margaret is treating her best friend to a birthday dinner. Before ordering, Margaret wants to have an idea of the final bill. The order includes one appetizer for $6.50, two main courses for $15.75 each, two drinks for $2.25 each, and two desserts for $7.25 each. Round each amount up to the nearest whole dollar to find an overestimate of the total cost.