please help with both questions, answer i get is way off for both. QUESTION 5 5

Question

   please help with both questions, answer i get is way off for both.

QUESTION 5 5 points Save Answer whats he chance A biologist estimates that 70% of deer un the region carry a certa n type of tick ror a sample of300 deer selected at random have this tick? at 26 deer 00189 o 07422 e 00512 00390 QUESTION 6 5 points Save Answer A magazine reported that S% of American divers read the newspaper while driving. If500 diners are selected at random will admit to reading the newspaper while driving nd the probablity that at most 40 93.56% 06 38% 45.96% 0 53.20% QUESTION 7 5 points

Explanation / Answer

Solution:-

Question 5

Binomial Problem with n = 300 and p(tick) = 0.7

P(0<= x <=216) = binomcdf(300,0.7,215) = 0.7422

Question 6

Here, p = 0.08, q = 0.92 and 500

np = (500)(0.08) = 40

nq = (500)(0.92) = 460

We can use normal distribution as, np > 5 and nq > 5

Mean = np = 40

Standard deviation = sqrt(npq) = sqrt((500)*(0.08)*(0.92))

= 6.066

P(X < 40) = P(Z < (x - np) / sqrt(npq))

= P(Z < 40 - 40 / 6.066)

= 53.20%

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