If the tournament is 195 miles away how many gallons of gas will she have to purchase
1 answer:
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Answer:
Step-by-step explanation:
1 .1 ( .1 repeating) =
Let x=0.1
Then 10x = 1.1111...
= 10 + 0.(1)
= 10+ x.
So, 9x=10 and lastly, x=
Answer:
Standard score of -0.25.
A data value of 89 is approximately in the 40th percentile.
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
Give the standard score and approximate percentile for a data value of 89.
Z when X = 89
has a pvalue of 0.4013.
So a data value of 89 is approximately in the 40th percentile.