2 years ago

1. SAT Math scores in recent years have had means around 490 and standard deviations

Mathematics

1 answer:

tatiyna2 years ago

3 0

Answer:

´The variance is 10000

Step-by-step explanation:

The variance is defined as the square of standard deviation, consequently it is as follows:

σ^2= $100^{2}$

σ^2=10000

You might be interested in

Erin wants to measure the length of a pond. She measured 15 yd from point Y to point Z and 17 yd from point X to point Z. What i

sattari [20]

X the length of the bounce is 25

5 0

2 years ago

Is 3.14596387 a rational number?

zaharov [31]

No it is an irrational number

8 0

2 years ago

Read 2 more answers

Fifteen sprinters ran the 50-yard dash in an average of 9.5 seconds. Of those runners,3 ran the dash in 11.5 seconds. Find the a

dezoksy [38]

There might be a variety of averages for the 12 boys.

3 0

2 years ago

Read 2 more answers

A piece of wire is 8/9 meter long broke into two pieces. One piece is 2/3 meter long. How long is the other?

Genrish500 [490]

Answer:

<h2>2/9 is the answer.</h2>

Step-by-step explanation:

1. First, make an equation.

Given:

8/9 = length of wire

2/3 = length of a part of the wire

E = 8/9-2/3

Unknown:

Second part of wire

2. Make the numbers have equal denominators

2/3 * 3/3

= 6/9

3. Solve

8/9 - 6/9

= 2/9

Hope this helped,

Kavitha

3 0

2 years ago

2. Is the expression 2 • 4' equal to the expression 8"? Explain your answer.

liberstina [14]

Yes, this is because 2*4 equals 8

4 0

2 years ago