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2 years ago

5

A. Determine the value of each function

1 answer:

Ivenika [448]2 years ago

6 0

Answer:

a= -5

b=5

c=6

substitue each value as x

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The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party,

Mama L [17]

Answer:

$(a)\ P(x = 0) = 0.2725$

$(b)\ P(x \ge 1) =0.7275$

$(c)\ P(x \le 2) = 0.8948$

Step-by-step explanation:

Given

$n = 8$ --- 8 friends

$p = 15\%$ --- proportion that one-time fling

This question is an illustration of binomial probability, and it is represented as:

$P(X = x) = ^nC_x* p^x * (1 - p)^{n-x}$

Solving (a): P(x = 0) --- None has done one time fling

$P(x = 0) = ^8C_0* (15\%)^0 * (1 - 15\%)^{8-0}$

$P(x = 0) = 1* 1 * (1 - 0.15)^{8}$

$P(x = 0) = 0.85^8$

$P(x = 0) = 0.2725$

Solving (b): $P(x \ge 1)$

To do this, we make use of compliment rule:

$P(x = 0) + P(x \ge 1) =1$

Rewrite as:

$P(x \ge 1) =1 - P(x = 0)$

$P(x \ge 1) =1 - 0.2725$

$P(x \ge 1) =0.7275$

Solving (c): $P(x\le 2)$ --- Not more than 2 has one time fling

This is calculated as:

$P(x\le 2) = P(x = 0) + P(x =1) + P(x = 2)$

We have:

$P(x = 0) = 0.2725$

$P(x = 1) = ^8C_1* (15\%)^1 * (1 - 15\%)^{8-1}$

$P(x = 1) = 8* (0.15) * (1 - 0.15)^7$

$P(x = 1) = 0.3847$

$P(x = 2) = ^8C_2* (15\%)^2 * (1 - 15\%)^{8-2}$

$P(x = 2) = 28* (0.15)^2 * (1-0.15)^6$

$P(x = 2) = 0.2376$

So:

$P(x\le 2) = P(x = 0) + P(x =1) + P(x = 2)$

$P(x \le 2) = 0.2725 + 0.3847 + 0.2376$

$P(x \le 2) = 0.8948$

4 0

3 years ago

Is it A B C D Pls tell me

Mamont248 [21]

love Scenes That Went Too Far

7 0

3 years ago

Read 2 more answers

The initial price for wingstop is $40. After using a 30% discount, what is the<br> new cost?

Natali [406]

Answer:

$28 dollars is the new cost

Step-by-step explanation:

$40 - 30% = $28

6 0

3 years ago

Does y=-2x represent a function

evablogger [386]

Yeah
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7 0

3 years ago

How do you find the reduced simplest form for 12/126

Rainbow [258]

What number can you divide both the divisor and denominator by?

i see that 12 and 126 are divisible by 1, 2, 3, and 6

we're going to choose the biggest number we can divide by (which is 6)

12/6=2 / 126/6=21

the answer would be 2/21 because there is no other number (other than 1) that you could divide these both into

7 0

4 years ago