jayjay9434
11.06.2021 •
Mathematics
A recent study reported that Americans spend an average of 270 minutes per day watching TV. Assume the distribution of minutes per day watching TV follows a normal distribution with a standard deviation of 23 minutes.
A. What percent of the population watch more than 300 minutes per day? ROUND YOUR INTERMEDIATE CALCULATIONS AND FINAL ANSWER TO 2 DECIMAL PLACES!
B. What percent of the population watch more than 220 minutes per day? ROUND YOUR INTERMEDIATE CALCULATIONS AND FINAL ANSWER TO 2 DECIMAL PLACES!!
C. What percent of the population watch between 220 hour and 300 hours? ROUND YOUR INTERMEDIATE CALCULATIONS AND FINAL ANSWER TO 2 DECIMAL PLACES!!
D. Let’s define a “binge watcher” as someone in the upper 5% of distribution of minutes watching TV. How many minutes does a binge watcher spend per day watching TV? ROUND YOUR INTERMEDIATE CALCULATIONS AND FINAL ANSWER TO 1 DECIMAL PLACE!!!
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Ответ:
350=x
Step-by-step explanation:
how it got it was
300=x-50 for there you would add 50 to both side and it would cancel the -50 and then you get 350=xLet's analyze the information we have:
We know that Jason's account balance left -50 as a result.
We know he had $ 300 before.
What we do not know is what is the value you had to pay for your bills, so we will assign an x.
The bills + the money that he already had (300) resulted in -50
So:
X + 300 = -50
X = -50-300
X = -350
The total bills Jason had to pay was $ 350