Ask question

Ask question

All categories

4 years ago

15

A population has a mean of 400 and a standard deviation of 90. suppose a sample of size 100 is selected and x is used to estimat

e μ.

1 answer:

Over [174]4 years ago

5 0

What were your given answer choices

You might be interested in

Consider this expression.

il63 [147K]

I got -2(2x-3) but it should be C.-4x-2

8 0

3 years ago

"A line that goes through (4, 7) and (-2, 1)"

Olenka [21]

Y= x + 3
1. Find the gradient(slope)

1 - 7 / - 2 - 4
=1

2. Find the y. Intercept ( c )
Y = x + c
Replace by any of the two coordinates given (4 , 7 )
7 = 4 + c
C= 3

Equation => Y = x + 3

6 0

3 years ago

4. 700 J of work is used to push an object for 12 seconds. What is the power of this machine?

s2008m [1.1K]

Answer:

58.3333333333

Step-by-step explanation:

3 0

3 years ago

A train has one engine and six train cars. Find the total number of ways an engineer can arrange the train. (The engine must be

enot [183]

Answer: 720 ways

Step-by-step explanation:

Given

A train has 1 main engine and remaining 6 train cars

If the engine is always in the front the remaining train cars can be arranged is

$\Rightarrow \text{No. of ways}=6!=720\ \text{ways}$

4 0

3 years ago

A survey asked 247 students what their favorite subject was. Of those students, there were 115 boys. One hundred two students an

Butoxors [25]

Answer:

Step-by-step explanation:

you have to add a table

6 0

3 years ago