All categories

3 years ago

Below are some of the scores on a math quiz given last week.

Mathematics

1 answer:

Dimas [21]3 years ago

8 0

Answer:

A. The mean will increase.

Step-by-step explanation:

The mean is the average of the numbers. You just add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

84 + 75 + 76 + 80 + 48 + 75 = 438

438 / 6 = 73

mean = 73

The outlier is 48, so when you remove it, there will now be only five numbers in the set, and the mean will increase in size.

84 + 75 + 76 + 80 + 75 = 390

390 / 5 = 78

NEW mean (without the outlier) : 78

You might be interested in

You have a string.

marysya [2.9K]

That's pretty much a tricky question though

3 0

4 years ago

Read 2 more answers

3. A piece of white oak has a densityof 0.77 g/cm and a mass of 100 g,what would be the volume of thesample? PLEASE HELP!

Nezavi [6.7K]

$\text{Volume}=129.87cm^3$

Explanation

Step 1

the density of an object is given by:

$\text{density}=\text{ }\frac{mass}{\text{volume}}$

Step 2

let

$\begin{gathered} \text{density}=0.77\frac{g}{cm^3} \\ \text{mass}=\text{ 100 g} \\ \end{gathered}$

Step 3

replace,

$\begin{gathered} \text{density}=\text{ }\frac{mass}{\text{volume}} \\ 0.77\frac{g}{cm^3}=\frac{100g}{\text{volume}} \\ \text{volume}\cdot0.77\frac{g}{cm^3}=\text{1}00\text{ g} \\ \\ \text{Volume}=\frac{100\text{ g}}{0.77\frac{g}{cm^3}} \\ \text{Volume}=129.87cm^3 \end{gathered}$

I hope this helps you

5 0

1 year ago

Find the volume of each figure.

s344n2d4d5 [400]

Answer:

960

Step-by-step explanation:

Multiply 8x12x10 and you get 960

6 0

3 years ago

Read 2 more answers

Factor each expression: 2x + 12

mr Goodwill [35]

$2x + 12 \\ \\ GCF = 2 \\ \\ 2( \frac{2x}{2} + \frac{12}{2} ) \\ \\ 2(x + 6) \\ \\$

The final result is: 2(x + 6).

3 0

3 years ago

1. Each person has a 75% probability of going to the Chess Tahoe restaurant. a. You randomly select 8 people. What is the probab

Ipatiy [6.2K]

Step-by-step explanation:

75%

selected=8

=8-5=3

=75/100×3

=3/4×3

=9/4

=2 1/4

5 0

3 years ago