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3 years ago

May anyone please help me?

Mathematics

2 answers:

eduard3 years ago

4 0

Answer:

Step-by-step explanation:

10-2

kiruha [24]3 years ago

3 0

The answer will be D) 8

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g 78% of all Millennials drink Starbucks coffee at least once a week. Suppose a random sample of 50 Millennials will be selected

Tatiana [17]

Answer:

We know that n = 50 and p =0.78.

We need to check the conditions in order to use the normal approximation.

$np=50*0.78=39 \geq 10$

$n(1-p)=50*(1-0.78)=11 \geq 10$

Since both conditions are satisfied we can use the normal approximation and the distribution for the proportion is given by:

$p \sim N (p, \sqrt{\frac{p(1-p)}{n}})$

With the following parameters:

$\mu_ p = 0.78$

$\sigma_p = \sqrt{\frac{0.78*(1-0.78)}{50}}= 0.0586$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

We know that n = 50 and p =0.78.

We need to check the conditions in order to use the normal approximation.

$np=50*0.78=39 \geq 10$

$n(1-p)=50*(1-0.78)=11 \geq 10$

Since both conditions are satisfied we can use the normal approximation and the distribution for the proportion is given by:

$p \sim N (p, \sqrt{\frac{p(1-p)}{n}})$

With the following parameters:

$\mu_ p = 0.78$

$\sigma_p = \sqrt{\frac{0.78*(1-0.78)}{50}}= 0.0586$

6 0

3 years ago

Please help me i need a good grade

DedPeter [7]

Answer:

Step-by-step explanation:

midline: y = -2 (take the average of the min and max)

amplitude = 1.5 (distance from min or max to midline. Always a positive number)

period = 4pi

4 0

3 years ago

Read 2 more answers

Please help thanks :)

Igoryamba

Y = -1/2x + 5 is the answer

3 0

3 years ago

The base ticket price for a football game is modeled by the function p(x) = 15x + 10, where x is the years since the team starte

Svetllana [295]

The total cost of the ticket is the sum of the base ticket price, p(x) = 15x + 10, and the service charge, c(x) = 5x + 2. Therefore, from the word sum, the operation involved is Addition. This is the first among the choices given.

6 0

3 years ago

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Angie and Kenny play online video games. Angie buys 2 software packages and 3 months of game play. Kenny buys 1 software package

Rzqust [24]

Answer:

$15 for one month of game play.

Step-by-step explanation:

3 software packages times $30 equals $90 total in software packages. Subtract this from the total total of $210 to get $120.

Combined, Angie and Kenny got 8 months of game play.

Divide $120 by 8 to get $15.

It costs $15 to get 1 month of game play.

5 0

3 years ago