If you flip a coin 4 times, what is the best prediction possible for the number of times it will land on tails? If you flip a coin 10 times, what is the best prediction possible for the number of times it will land on tails?

Probability of getting tail (Number times a coins flip = 4 times) = 2

Probability of getting tail (Number times a coins flip = 4 times) = 5

Step-by-step explanation:

A . Number times a coins flip = 4 times

B . Number times a coins flip = 10 times

Computation:

Probability of getting tail = 1/2

Probability of getting tail (Number times a coins flip = 4 times) = 1/2(4)

Probability of getting tail (Number times a coins flip = 4 times) = 2

Probability of getting tail (Number times a coins flip = 4 times) = 1/2(10)

Probability of getting tail (Number times a coins flip = 4 times) = 5

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500