7/10- ? +3/2 =6/5 what is the answer
1 answer:
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Answer:
<h2><em>0.375 pounds </em></h2>Step-by-step explanation:
Let the amount of trail mix in each bag be x pounds. If Mario has pounds of trail mix and puts equal amounts of the trail mix into 6 bags for a hike with his friends, the amount of trail mix in each bag can be derives using the expression;
solving for x
<em>Hence 0.375 pounds of trail mix will be in each bag</em>
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Answer:
Decreasing the sample size decreases the width of the confidence interval.
Step-by-step explanation:
-Let s be the sample standard deviation and be the sample mean.
#We calculate the 95% confidence interval for the sample size 100 as below:
#we then calculate the confidence interval of sample size =50 and of similar mean and standard deviation:
#Notice that the smaller sample(n=50) has a narrower confidence interval.
Hence, decreasing the sample size decreases the width of the confidence interval.