1. An insurance company offers its policyholders a number of different premium payment options. For a randomly selected policyholder, let X be the number of months between successive payments. The cdf of X is as follows: F(x) = ⎧⎪ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎪⎩ 0 x < 1 0.25 1 ≤ x < 3 0.35 3 ≤ x < 4 0.50 4 ≤ x < 6 0.70 6 ≤ x < 12 1 12 < x Compute P(3 ≤ X ≤ 6). a) 0.35 b) 0.40 c) 0.45 d) 0.50 e) 0.55

i would say c is the best answer, hope it's right!

good luck! =)

cutie~

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.