3 years ago

Three coins are flipped. What is P(heads, heads, heads)? (Type your answer below)

Mathematics

1 answer:

musickatia [10]3 years ago

3 0

Maybe P(3) or P^3

Hope this is what your looking for!

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Factor the algebraic expression.<br> 72 +63

Ira Lisetskai [31]

Answer:135

Step-by-step explanation:72 + 63 =135

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3 years ago

The temperature of coffee served at a restaurant is normally distributed with an average temperature of 160 degrees Fahrenheit a

posledela

Answer:

The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 160 degrees

Standard Deviation, σ = 5.4 degrees

We are given that the distribution of temperature of coffee is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.2

$P( X < x) = P( z < \displaystyle\frac{x - 160}{5.4})=0.2$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 160}{5.4} = -0.842\\\\x = 155.4532$

Thus,

$P_{20}=155.4532$

The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.

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Step-by-step explanation:

x=48

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i think the correct answer of these qusion is -2,3

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