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3 years ago

Evaluate p/n if n = 2 and p = -8

Mathematics

2 answers:

svlad2 [7]3 years ago

7 0

Answer:

-4

Step-by-step explanation:

-8/2= -4

dalvyx [7]3 years ago

4 0

Answer:

-1/4 or -0.25

Step-by-step explanation:

n=2 and p=-8

substitute p as the numerator and n as the denominator in the fraction

2/-8 simplifies to 1/-4, the sign moves to the front of the fraction because any positive number divided by a negative number will be negative and it is common practice, so the answer is -1/4.

-1/4 is equal to -0.25 in decimal. -0.25 is 1/4 of -1.

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alexdok [17]

Answer: 0.009

Step-by-step explanation:

Formula we use here : Binomial distribution formula

Probability of getting success sin x trial = $P(X)=^nC_xp^x(1-p)^{n-x}$ , where n is the sample size and p is the probability of success in each trial .

Given : A study conducted at a certain college shows that 65% of the school's graduates find a job in their chosen field within a year after graduation.

i.e. p= 0.65

Sample size : n= 11

Now, the probability that 11 randomly selected graduates all find jobs in their chosen field within a year of graduating:-

$P(X)=^{11}C_{11}(0.65)^{11}(1-0.65)^{11-11}\\\\=(1)(0.65)^{11}(1)\\\\=0.00875078317401\approx0.009$

Hence, the probability that 11 randomly selected graduates all find jobs in their chosen field within a year of graduating = 0.009

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Step-by-step explanation:

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