What is the value of x
1 answer:
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Hey there!
- Firstly, you have to
each of the sides of your equation
- Now that you have that portion out of the way, we could move on to our second step... which is to
by the value of
on each of your sides
(you get this because we solve the particular equation we added above)
- Thirdly, you have to
on each of your sides
because it equals to
because it brings us closer and closer to the answer of
- Fourthly, we have to
by the number
on each of your sides
Good luck on your assignment and enjoy your day!
~
Answer:
57.93% probability that a trip will take at least 35 minutes.
Step-by-step explanation:
Problems of normally distributed samples are 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:
What is the probability that a trip will take at least 35 minutes
This probability is 1 subtracted by the pvalue of Z when X = 35. So
has a pvalue of 0.4207
1 - 0.4207 = 0.5793
57.93% probability that a trip will take at least 35 minutes.