Answer:
a. 24
b. 2
c. 0.0833 = 8.33%
Step-by-step explanation:
a.
The first "slot" of person to arrive has 4 possibilities, then the second "slot" will have 3 possibilities, as one has already arrived, then the third "slot" has 2 possibilities, and the fourth "slot" has just 1 possibility.
So, multiplying all these combinations, we have 4*3*2*1 = 24 possible ways they can arrive
b.
If the first and the last person are already "locked", we just have possibilities for the second and third person. The second will have 2 possibilities (Sergio or Tyrone), and the third will have only 1 (the person that wasn't the second between Sergio and Tyrone). So, the number of possibilities is 2*1 = 2
c.
If we have 2 cases where Dawn is first and Jim is last, from a total of 24 possible cases, the probability is 2/24 = 1/12 = 0.0833 = 8.33%
The answer to the expression is 42
Answer: The accident proportion differ between the two age groups is 0.11.
Step-by-step explanation:
Since we have given that
Number of clients under 18 years of age = 500
Number of clients had had an accident = 180
Proportion of client had an accident = 
Number of clients aged 18 and older = 600
Number of clients had had an accident = 150
Proportion of client had an accident = 
So, According to question, we get that
Difference between the two age groups proportions would be :
Hence, the accident proportion differ between the two age groups is 0.11.
Answer:
About 1 gal
Step-by-step explanation:
When you are estimating with fractions, you should round them off to the closest integers that you can work with in your head.
⅓, ⅕, and ½ are all close to zero, but that's absurd, because Neil clearly has some paint
.
Instead, let's estimate that ⅓ gal + ⅕ gal make about ½ gal.
They still have the other ½ gal, and
½ gal + ½ gal = 1 gal.
Neil has about 1 gal of paint.
