Answered

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The 30 students in class A have a mean test score of 80%. The 20 students in class B have a mean test score of 75%.

What is the mean score for all 50 students?

Sagot :

coehe

Answer:

77.5%

Step-by-step explanation:

Add 80 and 75 together: 155

Then divide by 2 because there are 2 #s: 77.5

Add a percent symbol to they're end cause they are all percents: 77.5%

And you have your answer!!!!

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