Answer:
14.89% or 0.1489
Step-by-step explanation:
First, find the z-score for both 70 and 80 minutes and their corresponding percentile.
For X = 70 minutes:
This z-score is equivalent to the 7.445 th percentile, so the probability of a student finishing this exam in less than 70 minutes is 7.445%
or X = 80 minutes:
This z-score is equivalent to the 92.555 th percentile, so the probability of a student finishing this exam in more than 80 minutes is 100- 92.555 = 7.445%
Therefore, the probability (P) of a student finishing this exam in less than 70 minutes or more than 80 minutes is:
P = 7.445% + 7.445% = 14.89%
Answer:
2½
Step-by-step explanation:
First find the Least Common Denominator [LCD], which is 6, then convert 5⅙:
5⅙ → 4 7⁄6
You see, we regrouped 1 from 5⅙ to make sure that the top mixed number had a higher value than the bottom mixed number, so it is much easier to work with.
I am joyous to assist you anytime.
Answer:Solve by simplifying for both sides of the equation, then isolating the variable.
Step-by-step explanation: x=0.4174294
Answer:
Distance from A to B is 1152.6 feet.
Answer:
43,300
Step-by-step explanation:
Starting with 2 since its in the hundredths and going over one place to the tenths, we see 7 <em>is </em> greater than 5 so we make the 2 a 3 and replace everything after with 0's
43,300!!
