Ask question

Ask question

All categories

soldier1979 [14.2K]

2 years ago

13

A variable has a mean of and a standard deviation of . observations of this variable have a mean of and a sample standard deviat

ion of . Determine the observed value of the

1 answer:

RideAnS [48]2 years ago

8 0

Answer:

the mean is 26

Step-by-step explanation:

You might be interested in

The product of -3 and -7 is positive.<br><br><br> True False

dmitriy555 [2]

True!! If you multiply -3 x -7 you get 21!!

3 0

2 years ago

Read 2 more answers

John walks m miles each week. Marie’s distance can be found by using the expression : 3m + ½

KiRa [710]

Answer:

21.5 Miles or 21 ½ Miles

Step-by-step explanation:

Plug in 7 as m to 3m + ½.

Then, I get 3(7) + ½.

That concludes to 21 + ½

Add the ".5" or "½" at the end

So, answer is you get is 21.5 of 21 ½

7 0

2 years ago

Please find the area of the shaded region.

rodikova [14]

here is the solution to the question

3 0

3 years ago

nydimaria [60]

Answer:

1) D

2) 10

Step-by-step explanation:

sin(30) = opposite/hypotenuse

sin(30) = 5/x

½ = 5/x

x = 5/0.5

x = 10

5 0

3 years ago

Find the square: (5x - 4y)2 <br><br> (and please put the process of solving the equation)

satela [25.4K]

$(5x-4y)^2$
$(5x-4y)(5x-4y)$

Multiply each term in one bracket in turn by the terms in the other bracket

$(5x)(5x) = 25x^2$
$(5x)(-4y)=-20xy$
$(-4y)(5x)=-20xy$
$(-4y)(-4y)=16y^2$

Put them together we have
$25x^2-20xy-20xy-16y^2$
$25x^2-40xy-16y^2$

7 0

2 years ago