Ask question

Ask question

All categories

2 years ago

7

For a normally distributed random variable x with m = 75 and s = 4, find the probability that 69 < x < 79 Use the table to

help find the answer.

1 answer:

nalin [4]2 years ago

6 0

10-14-19-12-14-18-10-15-15

You might be interested in

The school PTA invested 200.00 for the DJ. If they only made 125.00 on the dance, their profit would be -75.00? What does this m

Lerok [7]

Answer:

The answer is D

Step-by-step explanation:

7 0

2 years ago

Find the inverse of 2∛(x+2)

Artemon [7]

$y=2\sqrt[3]{x+2}\ \ \ |divide\ both\ sides\ by\ 2\\\\\sqrt[3]{x+2}=\dfrac{y}{2}\to x+2=\left(\frac{y}{2}\right)^3\ \ \ |subtract\ 2\ from\ both\ sides\\\\x=\dfrac{y^3}{2^3}-2\\\\x=\dfrac{1}{8}y^3-2\\\\\boxed{f(x)=2\sqrt[3]{x+2}\to f^{-1}(x)=\frac{1}{8}y^3-2}$

5 0

2 years ago

3 1/7 x 2 2/8 (multiply fractions)

k0ka [10]

Answer:

.214 if it is to 3 decimal places.

5 0

2 years ago

PLS NEED HELP WITH 3 AND 4

Rainbow [258]

Answer:

the first one is 62 and the second one

Step-by-step explanation:

i dont know the second one

3 0

2 years ago

Solve the equation: \frac{2}{3}t=\frac{5}{9} (hint: reciprocal)

Aleks04 [339]

Given:

$\frac{2}{3}t=\frac{5}{9}$ $\text{ We know that the reciprocal of }\frac{2}{3}\text{ is }\frac{3}{2}\text{.}$

Multiply both sides by 3/2, we get

$\frac{3}{2}\times\frac{2}{3}t=\frac{3}{2}\times\frac{5}{9}$

Cancel out the common multiples, we get

$t=\frac{1}{2}\times\frac{5}{3}$

$t=\frac{1\times5}{2\times3}$

$t=\frac{5}{6}$

The solution of the given equation is

$t=\frac{5}{6}$

or

$t=0.8333.$

3 0

8 months ago