Answer:
3/5
Step-by-step explanation:
Answer:
19.5 pounds
Step-by-step explanation:
25% of 26 equals 6.5, so 26-6.5 is 19.5 pounds
Anyone help with my geometry quiz please
Answer:
The variance is 3.2
Step-by-step explanation:
step 1
Find the mean
[78+79+79+81+83]/5-------> 400/5------> 80
step 2
for each number: subtract the Mean and square the result
(78-80)²----->4
(79-80)²----> 1
(79-80)²----> 1
(81-80)²----> 1
(83-80)²----> 9
step 3
work out the mean of those squared differences
[4+1+1+1+9]/5-----> 16/5-----> 3.2----> this value is called the "Variance"