A test was taken by 60 students and was scored on a scale from 0 to 100. Only 2 students scored higher than or equal to 80. What is the smallest avg score of all 60 students
Answers
Heye
your answer ⏬
_________________________
★ The smallest total for the 21 students is found by assuming that they got the smallest value in the range “80 or more”. So how many points did they earn, in total? (Hint: Multiply 21 by 80)
The smallest total for the 21 students is found by assuming that they got the smallest value in the range “80 or more”. So how many points did they earn, in total? (Hint: Multiply 21 by 80)What is the smallest score that the remaining students might have gotten? (Hint: Zero)
The smallest total for the 21 students is found by assuming that they got the smallest value in the range “80 or more”. So how many points did they earn, in total? (Hint: Multiply 21 by 80)What is the smallest score that the remaining students might have gotten? (Hint: Zero)How many of these other students are there? (Hint: Subtract 21 from 60)
The smallest total for the 21 students is found by assuming that they got the smallest value in the range “80 or more”. So how many points did they earn, in total? (Hint: Multiply 21 by 80)What is the smallest score that the remaining students might have gotten? (Hint: Zero)How many of these other students are there? (Hint: Subtract 21 from 60)Assuming these students all got the minimum possible score in the interval “ zero to less than 80”, how many points did they get? (Hint: Multiply by zero)
The smallest total for the 21 students is found by assuming that they got the smallest value in the range “80 or more”. So how many points did they earn, in total? (Hint: Multiply 21 by 80)What is the smallest score that the remaining students might have gotten? (Hint: Zero)How many of these other students are there? (Hint: Subtract 21 from 60)Assuming these students all got the minimum possible score in the interval “ zero to less than 80”, how many points did they get? (Hint: Multiply by zero)So what is the minimum total points for the entire class? (Hint: Add)
The smallest total for the 21 students is found by assuming that they got the smallest value in the range “80 or more”. So how many points did they earn, in total? (Hint: Multiply 21 by 80)What is the smallest score that the remaining students might have gotten? (Hint: Zero)How many of these other students are there? (Hint: Subtract 21 from 60)Assuming these students all got the minimum possible score in the interval “ zero to less than 80”, how many points did they get? (Hint: Multiply by zero)So what is the minimum total points for the entire class? (Hint: Add)So what is the class average? (Hint: Divide the total points by 60)
___________________________
mark me brainliest.......
The smallest average score of all 60 students is 28.
Given: Total number of students = 60.
Only 21 students scored higher than or equal to 80 on a scale from 0 to 100.
To Find: The smallest average score of all 60 students
Solution:
- It is to be noted that in this question, they are asking for the 'smallest' average, which means they require only the minimums. So in this case, it is easy to just take the extremes.
- Since only 21 students scored higher than or equal to 80, we will assume that those 21 students scored exactly 80.
- For the rest 39 students, we need to assume they got the least marks which are zero.
Coming to the numerical, we find the average which will be least,
Average = ( ( 21 × 80 ) + ( 39 × 0 ) ) / 60
= 1680 / 60
= 28
Hence, the smallest average score of all 60 students is 28.
#SPJ3