Question

What is it plz help me

Answer 1

Answer:

280 said YES

120 said NO

56 drink at least 3 cups

224 do not drink at least 3 cups

56/400 drink 3 cups a day or 7/50 simplified.

Step-by-step explanation:

To complete the frequency table use the sample size 400, 7/10 say yes, and 20% drink at least 3 cups.

• If 7/10 people say yes, then 3/10 people say no. 7/10 as a decimal is 0.7. Multiply 0.7 by the sample size 400 to find the amount of people.

       0.7(400) = 280

       This means 280 people say yes. And 120 must say no.

• If 20% drink at least 3 cups then 0.20 is the decimal conversion. To find the amount multiply 0.20 by the same size 280 (the amount who said yes).

       0.2(280) = 56

       This means 56 people said YES and drink at least 3 cups. And 224  who said YES do not.

This also means 56 out of the whole sample size of 400 drink 3 cups. THe fraction is 56/400 or 7/50 simplified.