Answer:
She will ride an average of 5 miles
Step-by-step explanation:
To calculate the average, add all the values together and divide by the amount of values:
3 + 5 + 4 + 8 = 20
20 ÷ 4 = 5
Average of 5 miles
Answer:
From least likely to most likely:
Colorado Bronze wins
I Am Pat wins
Good Legs Lance wins
Step-by-step explanation:
Converting all probabilities to the same type may be easier to visualize and see the chances. Let's convert each chance to percentage:
P(I Am Pat wins) = 3/10 = <u>30%</u>
P(Good Legs Lance wins) = 0.6 = <u>60%</u>
P(Colorado Bronze wins) = 10%= <u>10%</u>
Thus, the desired order is:
Colorado Bronze wins
I Am Pat wins
Good Legs Lance wins
Answer:
2.28%
Step-by-step explanation:
mean = 5 years = 60 months
standard deviation = 6 months
X = number of years the tires will last
P = probability of ...
z = z-score
6 years = 72 months
z = (# of months - mean) / standard deviation
z = (72 - 60)/6
z = 12/6
z = 2
P(X > 72) = 1 - P(X < 72)
= 1 - P(z < 2)
(using a Standard Normal Probabilities Table we can see that P(z < 2) = .9772)
So:
= 1 - .9772
= 0.0228 OR 2.28%
