Hi, Can you please solve and explain the question below, thank you so much. Home

Question

Hi,

Can you please solve and explain the question below, thank you so much.

Home Business Statistics: Introducing the Analytical Use of Spreadsheets Probability Evaluation Tools Evaluation: Basic Models Discrete Random Variables When entering numerical inputs throughout this evaluation, use decimal approximations accurate to nearest 0.001 Binomial Random Variables Part 1 Draw a card 8 times from a shuffled deck, with replacement. What is the probability that at least 6 of the draws will be face cards? Part 2 Roll a six-sided die 7 times. What is the probability that 6 will appear at least 2 times? Part 3 The probability that a random newborn is male is roughly 0.51 What is the probability that at least 2 of 5 newborns will be male?

Explanation / Answer

Please 1 question at a time.

Binomial Random Variables:

Part1)
p of face card = no. of face card in deck/total in deck = 12/52 = 3/13=

P( alteast 6 are face out of 8 draws) = 8C6( .231^6)(.769^2) = .002516

Part2)
P( 6 appers atleast 2 times when die rolled 7times) = 1-p( got 6 atmost 1 times)
=1- ( 7C0*(.167^0)(.83^7) + 7C1((.167^1)(.83^6))

= .347

Part3)
P(male) = .51
P( atleast 2 out of 5 arae male) = 1-P( 1 or 0 males)
=1- ( 5C0*.51^0*.49^5 +5C1*.51^1 *.49^4)
=.825

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.