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Diano4ka-milaya [45]
2 years ago
10

How do I do this!!!!!

Mathematics
1 answer:
Readme [11.4K]2 years ago
6 0

The expected values of the binomial distribution are given as follows:

1. 214.

2. 21.

3. 31.

<h3>What is the binomial probability distribution?</h3>

It is the <u>probability of exactly x successes on n repeated trials, with p probability</u> of a success on each trial.

The expected value of the binomial distribution is:

E(X) = np

For item 1, the parameters are:

p = 3/7, n = 500.

Hence the expected value is:

E(X) = np = 500 x 3/7 = 1500/7 = 214.

For item 2, the parameters are:

p = 0.083, n = 250.

Hence the expected value is:

E(X) = np = 250 x 0.083 = 21.

For item 3, the parameters are:

p = 1/13, n = 400.

Hence the expected value is:

E(X) = np = 400 x 1/13 = 31.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

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-BARSIC- [3]

I know the parabola will open downward because the leading coefficient of the equation, being -5, is negative/less than zero.

5 0
3 years ago
NEED ANSWER ASAP WILL GIVE BRAINLIEST!!!
dolphi86 [110]

Answer:

Answer = 0.25

Step-by-step explanation:

Slope (m) = 0.25

θ = 14.036243467926°

distance (d) = 74.215901261118

ΔX = 72

ΔY = 18

6 0
3 years ago
Simplify:<br> 5 1/12 - 2 3/4 =<br> Express your answer as a mixed number.
disa [49]

Answer:

Mixed Number Form: 2 1/3

Step-by-step explanation:

7 0
2 years ago
Whats the square root of 45
Nady [450]

Answer:

6.71

Step-by-step explanation:

6.7082039325

Round it.

6.71

6 0
2 years ago
A bike rental company charges a fee per hour. The charge, in dollars, is the same each hour. The ordered pairs (3, 13.50) and (5
olchik [2.2K]

If the function is y = 4.5x. Then the rate of change of the function expressed as a unit rate will be 4.5.

<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

A bike rental company charges a fee per hour.

The charge, in dollars, is the same each hour.

The ordered pairs (3, 13.50) and (5, 22.50) represent the corresponding hours, x, and cost, y.

Then the linear equation is given as

\begin{aligned} \rm  y - 22.5 &= \rm \dfrac{22.5 - 13.5}{5 - 3} (x-  5)\\\\\rm y - 22.5 &= \rm 4.5x - 22.5\\\\\rm y &= \rm 4.5x \end

Then the rate of change of the function expressed as a unit rate will be

\rm \dfrac{dy}{dx}  = \dfrac{d}{dx} (4.5x )\\\\\dfrac{dy}{dx}  = 4.5

More about the linear system link is given below.

brainly.com/question/20379472

#SPJ1

7 0
2 years ago
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