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dimulka [17.4K]
3 years ago
8

Suppose that a sample of size n = 2 is drawn from the population of the preceding problem and that the proportion of the sample

values that are greater than 3 is recorded. Find the sampling distribution of this statistic by listing all possible such samples. Find the mean and variance of the sampling distribution.
Mathematics
1 answer:
Crazy boy [7]3 years ago
7 0

Answer:

I THINK ITS 10

Step-by-step explanation:

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Shelly states that the triangles below are similar. Which proportion supports her statement?
OLga [1]

Answer:

\frac{NO}{ST} = \frac{NM}{SR} = \frac{OM}{RT}

Step-by-step explanation:

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Uma secretária possui 6 camisas, 4 saias, e 3 pares de sapatos. Qual o número de maneiras distintas com que a secretária poderá
juin [17]

Answer:

72 maneiras

Step-by-step explanation:

O que acontecerá aqui é que um de cada tipo de roupa será selecionado.

Das 6 camisas, 1 será selecionada O número de maneiras pelas quais podemos fazer isso é 6C1 = 6

Das saias também, ela estará selecionando uma O número de maneiras que isso pode ser feito é 4C1 = 4

O terceiro é selecionar um par de sapatos de 3 e isso seria 3C1 = 3

assim o número de maneiras pelas quais ela pode fazer as seleções é 6 * 4 * 3 = 72 maneiras

6 0
3 years ago
4. Solve using elimination.<br> 4x -3y = 9<br> 3x +2y = 11
UNO [17]
Answer: (3,1)

Explanation:
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A store has a 20% sale on everything. An item originally cost 350 AED. What is the sale price? Show your work of how you calcula
slega [8]

Answer:

Step-by-step explanation:

A store has a 20% sale on everything.

So since you are saving 20%, you will only be paying 80% of the original price.

To find the sale price use the following formula:

Sale price = 80% x original price

They told us the original price = 350 AED

This means:

Sale price = 80% x 350

I think it would be easiest to change 80% into a fraction if you don't have a calculator :)

80% = \frac{80}{100}  = \frac{4}{5}

This means that the

Sale Price= \frac{4}{5} x 350 = 280 AED

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the percent of sales tax is 10%. what is the actual price of a pair of basketball shoes that cost $98?
larisa [96]

Answer:

(98/100)*110 = $107.8

Step-by-step explanation:

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3 years ago
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