MATHEMATICS MIDDLE SCHOOL

Find the mean and median for this set. 1, 1, 3, 3, 3, 5, 5, 5, 6, 7, 7, 7, 7, 7, 8.

Answers

Answer 1

Answer:

Answer:

Mode is 5

Median is 5

Step-by-step explanation:

Step 1: Combine all the numbers

1 + 1 + 3 + 3 + 3 + 5 + 5 + 5 + 6 + 7 + 7 + 7 + 7 + 7 + 8

Step 2: Find the total amount of numbers

1, 1, 3, 3, 3, 5, 5, 5, 6, 7, 7, 7, 7, 7, 8

15 numbers

Step 3: Find the mean

Total sum of numbers / Total amount of numbers

75 / 15

5 - > MEAN

Answer: Mean is 5

Step 4: Find the median/middle

1, 1, 3, 3, 3, 5, 5,5, 6, 7, 7, 7, 7, 7, 8

5 -> is the Median

Answer: Median is 5

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Complete the chart to find the mean,variance,and standard deviation. 45 340 400 825

Answers

Answer:

A. Mean = 402.5

B. Variance = 77,556.25

C. Standard Deviation = 278.49

Step-by-step explanation:

Let's calculate the mean, variance and standard deviation of the set of numbers given:

A. Mean = (45 + 340 + 400 + 825)/4 = 1,610/4 = 402.5

B. Variance [(45 - 402.5)² + (340 - 402.5)² + (400 - 402.5)² + (825 - 402.5)²]/4 = [(127,806.25 + 3,906.25 +6.25 + 178,506.25/4 =77,556.25

C. Standard Deviation = √Variance = √77,556.25 = 278.49

Answer:

1. 45⠀= -357.5⠀= 127,806.3⠀mean = 402.5

2. 340⠀= -62.5⠀ = 3,906.3⠀variance = 77,556.3

3. 400⠀= -2.5⠀= 6.3⠀deviation = 278.5

4. 825⠀= 422.5⠀= 178, 506⠀n = 4

Σ X = 1,610⠀X = 402.5⠀Σ (X - X)2 = 310,225.2

Step-by-step explanation:

What is 2/7 and 4/28 with a common denominator

Answers

2/7 could be 8/28 giving you a common denominator. Or you could have 4/14 and 2/14.

2/7 8/28 The common denominator is 28,

4/28 4/28

100 POINT QUESTION!!Tamika opens a credit card in which the minimum monthly payment is 15%. Her current balance is $2,450, not including the finance charge, and the APR is 20.5%. Assuming she makes a payment of $400 this month, how much will the minimum monthly payment be for the next month?

Answers

Answer:

$313.78

Step-by-step explanation:

Which inequalities are true? Check all that apply.Three-fifths < 0
Four-sixths greater-than one-half
Nine-elevenths < 1
Three-eighths
Eight-sixteenths greater-than one-half

Answers

Answer:

THE ANSWR IS THAT THREE FIFTHS

Step-by-step explanation:

Answer:

all but the last one

Step-by-step explanation:

this is because 8/16 simplified is 1/2

Please help with work shown, i need it quickly!

Answers

adults=11 children=8
55x11=605
53x8=424
605+424=1029
1029 is the answer

Maria walked 3 km west and 4 km south calculate how far she is from her starting point.

Answers

Answer:

5 km

Step-by-step explanation:

We are given the distances walked by Maria;

3 km west and 4 km south

We are required to determine the displacement from her starting point;

We are going to use Pythagoras's theorem;

a² + b² = c²

Taking, the distances towards south and towards west as the legs of the triangle;

Then, c² = 3² + 4²

= 25

c = √25

= 5 km

Therefore, the displacement from the starting point is 5 km

Answer:

Step-by-step explanation:

5km

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