How do I find the x in this special triangle?

A box contains 14 large marbles and 10 small marbles. Each marble is either green or white 8 of the large marbles are green, and

netineya [11]

The probability that the marble is large or white is 0.5714.

<h3>What is probability?</h3>

Probability is the branch of mathematics that studies the possible outcomes of given events together with the outcomes' relative likelihoods and distributions.

Probability of an event is

P(A) = Number of favorable outcomes/ Total Number of outcomes

= n(A)/n(S)

where

P(A) is the probability of an event “A”

n(A) is the number of favorable outcomes

n(S) is the total number of events in the sample space.

We have,

Number of large marbles = 14

Number of small marbles = 10

Number of large green marbles = 8 which implies

Number of large white marbles = 14 - 8 = 6

Number of small white marbles = 4 which implies

Number of small green marbles = 10 - 4 = 6.

Now, let

Let X be the event of drawing large marble.

Let Y be the event of drawing small marble.

Let M be the event of drawing white marbles.

Let N be the event of drawing green marbles.

Since only one marble is drawn at a time ,

so P(X) = 14/24

P(Y) = 10/24

P(M) = 10/24

P(N) = 14/24

We have to find the probability that a marble is large or white i.e. P(X∪M).

P(X∪M) = P(X) + P(Y) - P(X∩M)

P(X∩M) = In 14 large marbles 6 are white marbles = 6/14.

P(X∪M) = P(X) + P(Y) - P(X∩M) = 14/24 + 10/24 - 6/14 = 0.5833+0.4167-0.4286 = 0.5714.

Therefore, the probability of drawing large or white marble is 0.5714.

To know more about probability, visit

brainly.com/question/19169117

#SPJ4

3 0

1 year ago

If the reciprocal of the number $X$ equals $\frac{2}{7}$, what is $5$ divided by $X$?

grigory [225]

U can find the reciprocal of a number by flipping the number.
example : the reciprocal of 1/5 is 5/1....the reciprocal of 2/3 = 3/2.

the reciprocal of x = 2/7.....that means x = 7/2

5 / (7/2) = when dividing fractions, flip what u r dividing by, then multiply
5 * 2/7 =
10/7 or 1 3/7 <==

5 0

3 years ago

A simplified formula of finding median of ungrouped data

Nimfa-mama [501]

Answer:

Median = [(n+1)/2]th observation,

Step-by-step explanation:

uu welcome

4 0

3 years ago

What percent of 40 is 35

scoray [572]

What i did was i put 35 over 40 then wrote another fraction with 100 on the bottom then multiplied 35 times 100 i got 3500 then i divdied 3500 by 40 and got 87.5 the answer is 87.5 <span />

4 0

4 years ago

The army reports that the distribution of waist sizes among female soldiers is approximately normal, with a mean of 28.4 inches

____ [38]

Using the normal distribution, it is found that:

a) Her waist is at the 2.74th percentile.

b) 99.86% of female soldiers requires custom uniform pants.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by: