Mathematics, 02.11.2019 14:31 pressure772
Astudy of one thousand teens found that the number of hours they spend on social networking sites each week is normally distributed with a mean of 30 hours. the population standard deviation is 2 hours. what is the 95% confidence interval for the mean?
Answers: 1
Mathematics, 22.06.2019 00:00
At a pizza shop 70% of the customers order a pizza 25% of the customers order a salad and 15% of the customers order both a pizza and a salad if s customer is chosen at random what is the probability that he or she orders either a pizza or a salad
Answers: 1
Mathematics, 22.06.2019 05:00
Marcus needs to bike at least 80 miles this week for his training. if he has already biked 25 miles this week, then how many miles should he bike on each of the 5 remaining days this week ?
Answers: 1
Mathematics, 22.06.2019 05:00
When a number is decreased by 7%,the result is 74. what is the original number to the nearest tenth
Answers: 2
Astudy of one thousand teens found that the number of hours they spend on social networking sites ea...
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