Answer:
A, B, C
Step-by-step explanation:
The total number of students is the sum of the students taken each course. Hence the total number of students is:
Total number = 6 + 10 + 18 + 4 + 12 = 50 students
A) The percentage of students offering chemistry = (number of students offering chemistry / total number of students) * 100%
percentage of students offering chemistry = (10 / 50) * 100% = 20%
Option A is correct
B) number of students taking health science = 12, while number of students taking physics = 6. Hence About twice as many students are taking Health Science than are taking Physics.
Option B is correct.
C) The percentage of students taking physic = (6 / 50) * 100% = 12%
Therefore for 150 students, the number of students taking Physics = 12% * 150 = 0.12 * 150 = 18
Option C is correct
D) The percentage of students taking earth science = (4 / 50) * 100% = 8%
Therefore for 25 students, the number of students taking earth science = 8% * 25 = 0.08 * 25 = 2
For every 150 students we could predict that 18 of the students are taking Physics.
Option D is correct
Answer:
The proportion of customers who used coupons within the last 2 years is 0.1089.
Step-by-step explanation:
A proportion is the number of desired outcomes divided by the number of total outcomes.
Proportion of customers who used coupons within the last 2 years.
Desired outcomes:
Number of receipts which are discounted by coupons, which is 49
Total outcomes:
Total number of receipts, which is 450
Proportion:
The proportion of customers who used coupons within the last 2 years is 0.1089.
76 over 3 is the same thing as 76 divided by 3. I like to use long division to do it. The quotient will be the whole number, the remainder will be the numerator, and 3 is till the denominator.
The answer is 25 1/3.(25 is the whole number)
