Answer
it'll take 20 hours to burn!
Step-by-step explanation:
for every 2 inches it takes an hour so if you do 10 x 2 you get 20!
Answer:
a) 4.387
b) Yes, because np & npq are greater than 10.
c) = 0.017
Step-by-step explanation:
Give data:
p = 0.69
n = 90
a) a
E(X) = np = 62.1


= 4.387
b)
np = 62.1
q = 1 - p = 1 - 0.69 = 0.31
npq = 19.251
Yes, because np & npq are greater than 10.
c.
[continuity correction]

= P(Z> 2.14 )
= 1 - P(Z<2.14)
= 1 - 0.983 (using table)
= 0.017
Answer: 50 + 2x
Step-by-step explanation: It's pretty basic math, you have your flat fee ($50) and then you add your variable 2x. 2 is multiplied by x so you can figure out the amount that it costs to ride the rides.
Company A: 177$
Company B: 238$
Both companies together: 415$