Answer:
The answer is 2/7.
Step-by-step explanation:
If you flip a coin 7 times then 7 is the denominator, which stands for the total amount of times you flipped the coin. The numerator is 2, which is the amount of times you land on the same thing, in this case, landing on tails.
Hope this helps!
-Luna
Answer:: the equation is 7m + 19
Step-by-step explanation:
Answer:
a.
Variance=σ²=3.6
Standard deviation=σ=1.897
b.
This golfer is not much likely to play an 18-hole round and have more than 72 strokes because probability is low i.e.16.88%.
Step-by-step explanation:
We are given that mean number of strokes per hole=μ=3.6.
a.
The mean and variance of the Poisson distribution are equal
μ=σ²
Variance=σ²=3.6.
Standard deviation=√variance
σ=√σ²
σ=√3.6
Standard deviation=σ=1.897
b.
P(X>72)=1-P(X≤72)
P(X>72)=1-P(X≤72)
The calculation for this probability are difficult to made by hand and so, excel is used for computation of this probability.
Also we are given the mean number of strokes per hole=μ=3.6 and we have to find the mean number of strokes per 18 hole for computing the probability.
1 hole=3.6
18 hole=3.6*18=64.8
The mean number of strokes per 18 hole=μ=64.8
Using excel function POISSON.DIST(72,64.8,TRUE) for calculating the above probability
P(X>72)=1-0.8312
P(X>72)=0.1688
This golfer is not much likely to play an 18-hole round and have more than 72 strokes because probability is low i.e.16.88%.
I think #5 is 100 but i am not sure