The ratio of boys to girls in a class is 2:3. there are twelve boys in the class. how many girls are there
1 answer:
You might be interested in
Answer:
See the explanation
Step-by-step explanation:
<h2>Analytic View:</h2>If and event can occur in A number of way and fail in B number of ways, then probability of its occurrence is:
or probability of its failing is:
Rolling a number smaller than 3 in a dice.
A= 2 (1,2)
B = 4 (3,4,5,6)
Definition of Probability in terms of past performances (data). It can be taken as how often things happens divided by all outcomes.
<h3>Example:</h3>A batter has 50 safe hits at 200 bats, which makes his batting average which is the probability.
When you define a probability due to personel beleif in the likelihood of an outcome. It involve no formal calculations and varies from person to person, depending on their past experience.
<h3>Example:</h3>A person beleives that probability that the batter will hit safely in the next bat is 0.75
The answer to the question is a) -4.
Jack should invest $8400 in the CD account and $3600 in the savings account.
Step-by-step explanation:
Jack wants to earn 7.5% interest per year. That implies he wants to earn
7.5/100*12000 per year i.e $900 per year.
Lets assume he invests X amount in the savings account. That leaves 12000-X to be invested in the CD account.
That implies,
=>
=>
=> X = 3600