9. an express delivery service advertises next-day delivery of any parcel it receives before 3pm. the actual success rate is 90%. a random sample of 16 parcels were chosen.

a. calculate the probability that all 16 were delivered by the next day.

b. what is the probability that 12 or fewer were delivered on time?

a) P(X =16 ) = 0.1853

b) = 0.0684

Step-by-step explanation:

GIVEN DATA:

n = 16

p = 0.90

from relation given probabllity can be solve

a)

P(X =16 ) = 0.1853

b)

= 1 - [ P(X = 13) +P(X = 14) +P(X = 15) +P(X = 16) ]

= 0.0684

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

it is c, trust i got your back lol

step-by-step explanation: