Answer:
0.9958
Step-by-step explanation:
P(being correct) = 1/4 = 0.25
Hence, p = 0.25
n = 19
P(x ≥ 1) = p(x = 1) + p(x = 2) +... + p(x = 19)
Using the binomial probability formula :
P(x =x) = nCx * p^x * (1 - p)^(n - x)
However, to save computation time, we could use a calculator :
Using a calculator,
P(x ≥ 1) = 0.99577
P(x ≥ 1) = 0.9958
If 12 is 20%, then 24 is 40%, then 36 is 60%, then 48 is 80%, then 60 is 100%
So there are 60 questions on the test.
150 x .30 = 45
You saved $45 if you use the coupon for the skateboard
Answer:
Step-by-step explanation:
multiples of 5 are 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
multiples of 4 are 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80
the least common multiple they have is 20 mark brainliest thanks
Answer: 5
Step-by-step explanation:
1+1+1+1+1
