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3 years ago

Which of the following functions is graphed below ?(:

Mathematics

2 answers:

tresset_1 [31]3 years ago

5 0

Answer:

Step-by-step explanation:

y =[x]+5

dlinn [17]3 years ago

4 0

y = |x+3| - 4

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25% of all who enters a race do not complete. 30 haveentered.

nikklg [1K]

Answer:

The probability that exactly 5 are unable to complete the race is 0.1047

Step-by-step explanation:

We are given that 25% of all who enters a race do not complete.

30 have entered.

what is the probability that exactly 5 are unable to complete the race?

So, We will use binomial

Formula : $P(X=r) =^nC_r p^r q^{n-r}$

p is the probability of success i.e. 25% = 0.25

q is the probability of failure = 1- p = 1-0.25 = 0.75

We are supposed to find the probability that exactly 5 are unable to complete the race

n = 30

r = 5

$P(X=5) =^{30}C_5 (0.25)^5 (0.75)^{30-5}$

$P(X=5) =\frac{30!}{5!(30-5)!} \times(0.25)^5 (0.75)^{30-5}$

$P(X=5) =0.1047$

Hence the probability that exactly 5 are unable to complete the race is 0.1047

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3 years ago

A postcard has an area of 10 square inches. Two enlargements of the postcard have areas of 40 square inches and 160 square inche

insens350 [35]

Answer:

Step-by-step explanation:

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4 years ago

Discuss the differences between parametric and non-parametric tests?

lesya [120]

Nonparametric tests are also called distribution-free tests because they don't assume that your data follow a specific distribution. You may have heard that you should use nonparametric tests when your data don't meet the assumptions of the parametric test, especially the assumption about normally distributed data.

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3 years ago

A car begins to depreciate at a rate of 24.9% annually as soon as it is driven off the lot. If a car was purchased for 26,500; h

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Answer:

13197

Step-by-step explanation:

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