7-41= (-15)+33= 62-84= (-26)-14=

Fifteen seventh graders were randomly selected to see how many pushups in a row they could do. Their data are shown. a. b. 45, 4

GuDViN [60]

Answer: Median = 42

Mean = 43.8

Step-by-step explanation:

When we have a data set of n points {x₁, x₂, ..., xₙ}

The mean is written as:

(x₁ + ... + xₙ)/N

And the median will be the value in the middle of the data set.

So first, let's write our data set in order, from least to greatest.

{36, 36, 38, 40, 40, 40, 42, 42, 43, 45, 45, 48, 48, 70}

So we have 14 values.

The middle value will be at:

(n + 1)/2

(14 + 1)/2 = 7.5

Now, counting from the left, we have that the 7.5th value is 42. (the 7th value is 42, and the 8th value is 42)

So the median is 42.

Now the mean:

M = (36 + 36 +38 +40+40+40+ 42 +42 + 43 + 45 + 45 + 48 + 48 + 70)/14

M = 43.8

8 0

3 years ago

Without graphing how can i tell if. X + 4y=28 and 2x +8y=56 is inconsistent. Dependent or neither

Vedmedyk [2.9K]

Hello :
x+4y = 28
multiply by : 2
2x+8y =56
same line (same graph)
the system is : Dependent
when the solution is :
x = k .... k in R
y = -1/4 x +7

3 0

4 years ago

15 POINTS!!!!! How is a linear function affected when a constant is multiplied by y?

Lelu [443]

Answer:

a constant multiplied by y can affect the linear, because it determines a dependent variables.

Step-by-step explanation:

a linear relationship is a statistical term used to described a straight line relationship between two variables.

7 0

3 years ago

What are the coordinates of point S? On a coordinate plane, point S is 0.75 units to the left and 0.5 units up. (Negative three-

ZanzabumX [31]

Answer:

The coordinates of S is $( \frac{-3}{4}, \frac{1}{2})$

Step-by-step explanation:

We are supposed to find the coordinates of point S

Point S is 0.75 units to the left

So, x coordinate of point S = -0.75 = $\frac{-3}{4}$

Now we are given that point S is 0.5 units up.

So, y coordinate of point S = 0.5 = $\frac{1}{2}$

So, The coordinates of S is $( \frac{-3}{4}, \frac{1}{2})$

So, Option A is true .

8 0

4 years ago

A histogram shows data that is skewed to the right. Which most likely describes the relationship between the mean and the median

Liono4ka [1.6K]

Answer:

A histogram shows data that is skewed to the right. Which most likely describes the relationship between the mean and the median? The mean is greater than the median. The rightmost values in the data set raise the mean more than the median.

5 0

3 years ago

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