After 100 draws, Ana picked a pink shirt 20 times. Based on the probability, if she knows there are 5 shirts in the drawer, how many shirts would she expect to be pink?

1

Step-by-step explanation:

She picked a pink shirt 20 out of 100 times.

20/100 = 1/5

She picked a pink shirt 1/5 of the times.

There are 5 shirts.

1/5 * 5 = 1

1

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