Using the binomial distribution, it is found that the probabilities are given as follows:
a) 0.3185 = 31.85%.
b) 0.7998 = 79.98%.
c) 0.5187 = 51.87%.
<h3>What is the binomial distribution formula?</h3>
The formula is:
The parameters are:
- x is the number of successes.
- n is the number of trials.
- p is the probability of a success on a single trial.
In this problem, the parameters are given as follows:
n = 5, p = 0.51.
Item a:
The probability is P(X = 3), hence:
Item b:
The probability is:
P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)
Then:
So:
P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0282 + 0.1470 + 0.3061 + 0.3185 = 0.7998.
Item c:
The probability is:
In which:
P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0282 + 0.1470 + 0.3061 = 0.4813.
Then:
More can be learned about the binomial distribution at brainly.com/question/24863377
#SPJ1
Answer:
136 miles
Step-by-step explanation:
subtract $119.59 with how much he rented the truck for, which is $18.95 which makes his money at $100.64, then divide by how much each mile costed which was 74 cents
which gives you 136 so 136 miles.
Hope this helps :)
Do the foil method. first, outer, inner, last.
Answer:I would say the very first one, but I could be way off- ._.
Step-by-step explanation:
Answer:
3:1
Step-by-step explanation:
For 1 girl in the class, there are 3 boys
For 2 girls in the class, there are 6 boys
The ratio from boys to girls is 3:1