Answer:
Average weight of the bags of potatoes is 3.8 pounds.
Step-by-step explanation:
Given:
Weight of the first bag,
pounds.
Weight of the second bag is 0.4 pounds less than twice the weight of first bag. This means,

Weight of the third bag is 0.6 pounds more than that of the first bag. This means,

Weight of the fourth bag is 0.3 pounds less than that of the second bag. This means,

Therefore, the average weight of the bags of potatoes is given as the sum of all the weights and then divide the sum by 4. Therefore,

Therefore, average weight of the bags of potatoes is 3.8 pounds.
Median is the middle of the number set so
5 8 10 20 25 30 35 40 45
its 25
Answer:
C~7
Step-by-step explanation:
Given:
Total number of students = 27
Students who play basketball = 7
Student who play baseball = 18
Students who play neither sports = 7
To find:
The probability the student chosen at randomly from the class plays both basketball and base ball.
Solution:
Let the following events,
A : Student plays basketball
B : Student plays baseball
U : Union set or all students.
Then according to given information,




We know that,



Now,





It means, the number of students who play both sports is 5.
The probability the student chosen at randomly from the class plays both basketball and base ball is


Therefore, the required probability is
.