There are 1,400 students in a school. A random sample of 50 students contains 7 students with birthdays in March. Based on the data, how many students in the school should have birthdays in March?

196 students should have birthdays in March

Step-by-step explanation: you do 1400 divided by 50 which is 28. Then you do 28 times 7 which is 196.

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she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

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try again.