Answer:
P(a junior or a senior)=1
Step-by-step explanation:
The formula of the probability is given by:
P (AB) = P(A)
Where P(A) is the probability of occurring an event A, n(A) is the number of favorable outcomes and N is the total number of outcomes.
In this case, N is the total number of the students of statistics class.
N=18+10=28
The probability of the union of two mutually exclusive events is given by:
Therefore:
P(a junior or a senior) =P(a junior)+P(a senior)
Because a student is a junior or a senior, not both.
n(a junior)=18
n(a senior)=10
P(a junior)=18/28
P(a senior) = 10/28
P(a junior or a senior) = 18/28 + 10/28
Solving the sum of the fractions:
P(a junior or a senior) = 28/28 = 1
Answer:
24 square units
Step-by-step explanation:
18 could round to 20
31 could round to 30
30 x 20 would be 600
Pretty sure that’s your best estimate,
600
Answer:
.03397
Step-by-step explanation:
The fifth decimal is 7, and the number after that is 4. Because 4 is not greater than or equal to 5, we do not round up the 7.
Answer:
1.) Multiply the number of pounds by 4 to find total cost.
2.) 280 miles
3.) Multiply 40
4.) Multiply 12 each time: 56*12 = 672
5.) This is the same question as in picture 4
Hope this helps!
