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Semmy [17]
3 years ago
12

A bag contains 2 RED beads, 7 BLUE beads, and 6 GREEN beads. If a single bead is picked at random, what is the probability that

the bead is BLUE?
Mathematics
2 answers:
alukav5142 [94]3 years ago
5 0

Answer:7/15

Step-by-step explanation:

podryga [215]3 years ago
3 0

Answer:

P(blue) = 7/15

Step-by-step explanation:

The total number of beads is 2+7+6 = 15

P (blue) = blue beads/total

            = 7/15

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A father is 60 yrs old son is half his age .How old was the boy when his father was four times his age
inna [77]
Let f be the fathers age and let s be the sons age

f = 60 s = 30
when f = 45
s = 15 which is only a third if his fathers age

when f = 40
s = 10 which is a quarter of his fathers age

therefore when his father was 4 times his age, the son was 10
4 0
3 years ago
Read 2 more answers
The number of phone calls that Actuary Ben receives each day has a Poisson distribution with mean 0.1 during each weekday and me
Dovator [93]

Answer:

There is a 0.73% probability that Ben receives a total of 2 phone calls in a week.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

The problem states that:

The number of phone calls that Actuary Ben receives each day has a Poisson distribution with mean 0.1 during each weekday and mean 0.2 each day during the weekend.

To find the mean during the time interval, we have to find the weighed mean of calls he receives per day.

There are 5 weekdays, with a mean of 0.1 calls per day.

The weekend is 2 days long, with a mean of 0.2 calls per day.

So:

\mu = \frac{5(0.1) + 2(0.2)}{7} = 0.1286

If today is Monday, what is the probability that Ben receives a total of 2 phone calls in a week?

This is P(X = 2). So:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 2) = \frac{e^{-0.1286}*0.1286^{2}}{(2)!} = 0.0073

There is a 0.73% probability that Ben receives a total of 2 phone calls in a week.

3 0
3 years ago
Using number line what is 4-5​
Vinil7 [7]

Answer:

<h2>-1</h2>

Step-by-step explanation:

4 - 5 = -1

Count:

4, 3, 2, 1, 0, <u>-1</u>

6 0
2 years ago
Which one is better.
Firlakuza [10]

Answer:

pick 1

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If you do 12 minutes of a 45 minute workout how many calories is it? (the 45 minutes is 1000 calories in total)
velikii [3]

Answer:

266\frac{2}{3}

Step-by-step explanation:

if a 45 minute workout is 1000 calories, at the same rate, a 12 minute workout would be 266 calories and 2 thirds. \frac{12}{45} x 1000 = 266\frac{2}{3}

7 0
2 years ago
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