3 years ago

On a test that has a normal distribution, a score of 49 falls two standard deviations

Mathematics

1 answer:

julsineya [31]3 years ago

5 0

Answer:

57 mean

Step-by-step explanation:

x = mean

(x - 49 ) = 2 ( 61 -x)

x = 57

You might be interested in

The difference between the greatest and the smallest 5-digit numbers formed by using each of the digits 2, 0, 4 and 6 at least o

inn [45]

Answer:

46374

Step-by-step explanation:

The smallest 5-digit number is 20046

While the greatest is 66420

So 66420-20046=46374

7 0

3 years ago

sergejj [24]

Answer:

The gradient of the graph below is $\mathbf{\frac{3}{2} }$

Step-by-step explanation:

We need to calculate the gradient of the graph

The gradient of graph is actually slope of the graph.

The slope of graph can be calculated using formula: $Slope=\frac{y_2-y_1}{x_2-x_1}$

Taking any 2 points on graph i.e

(1,0) and (-1,-3)

We have $x_1=1, y_1=0, x_2=-1,y_2=-3$

Putting values and finding gradient:

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-3-0}{-1-1}\\Slope=\frac{-3}{-2}\\Slope=\frac{3}{2}$

So, The gradient of the graph below is $\mathbf{\frac{3}{2} }$

3 0

3 years ago

Which number best represents thirty-one feet below sea level?

Natali [406]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

How much will joseph have to pay

koban [17]

40% of 740 is 444, and 30% of 444 is 133.2 ,so the answer is $133.2

6 0

2 years ago

Read 2 more answers

Find the slope between (6,1) and (3,7)

VikaD [51]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers