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3 years ago

Would You RATHER...

Mathematics

1 answer:

nekit [7.7K]3 years ago

4 0

Question really depends on the persons mindset wether he/she likes to be rich or a middle person.

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Solve for the two possible values of X:

lbvjy [14]

X1 = 1.71429
X2 = 3.4

7 0

3 years ago

Deb is searching online for airline tickets. Two weeks ago, the cost to fly from Hartford to Boston was

Brilliant_brown [7]

Answer:

Percent increase = 60%

Percent increase with baggage = 83%

Step-by-step explanation:

Given that:

Old price of the ticket = $210

New price of the ticket = $335

Increase amount =335-210 = $125

Percent increase = $\frac{Inrease\ amount}{Old\ price}*100$

Percent increase = $\frac{125}{210}*100 = 0.595*100$

Percent increase = 59.52% = 60%

Additional charges = $125+$50 = $175

Percent increase = $\frac{175}{210}*100$

Percent increase = 83%

Hence,

Percent increase = 60%

Percent increase with baggage = 83%

4 0

3 years ago

Read 2 more answers

Among 8 PS4s, four are good and four have defects. Unaware of this, a customer buys 5 PS4s.

astraxan [27]

Answer:

(a) The probability of exactly 2 defective PS4s among them is 0.3125.

(b) The probability that exactly 2 are defective given that at least 2 purchased PS4s are defective is 0.3846.

Step-by-step explanation:

Let X = number of defective PS4s.

It is provided that 4 PS4s of 8 are defective.

The probability of selecting a defective PS4 is:

$P(X)=p=\frac{4}{8}=0.50$

A customer bought n = 5 PS4s.

The random variable X follows a Binomial distribution with parameters n = 5 and p = 0.50.

The probability function of a Binomial distribution is:

$P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0, 1, 2, 3...$

(a)

Compute the probability of exactly 2 defective PS4s among them as follows:

$P(X=2)={5\choose 2}(0.50)^{2}(1-0.50)^{5-2}=10\times0.25\times0.125=0.3125$

Thus, the probability of exactly 2 defective PS4s among them is 0.3125.

(b)

Compute the probability that exactly 2 are defective given that at least 2 purchased PS4s are defective as follows:

$P(X=2|X\geq 2)=\frac{P(X=2\cap X\geq2)}{P(X\geq2)} =\frac{P(X=2)}{P(X\geq 2)}$

The value of P (X = 2) is 0.3125.

The value of P (X ≥ 2) is:

$P(X\geq 2)=1-P(X$

Then the value of P (X = 2 | X ≥ 2) is:

$P(X=2|X\geq 2)=\frac{P(X=2)}{P(X\geq 2)}=\frac{0.3125}{0.8125} =0.3846$

Thus, the probability that exactly 2 are defective given that at least 2 purchased PS4s are defective is 0.3846.

6 0

3 years ago

Read 2 more answers

18. What is the similarity ratio for two circles with areas 2pim2 and 200m?

salantis [7]

S b xbvxxbhrvbjtdchji

4 0

3 years ago

How do you work out this question

Likurg_2 [28]

Answer:

The original price is $7926.83

Step-by-step explanation:

Step 1: Subtract the percent of the discount from the percent of the original cost:

100% - 18% = 82%

Step 2: Convert the percent to a decimal.

82% = 0.82

Step 3: Solve for the original price.

$\frac{0.82x}{0.82} = \frac{6500}{0.82}$

= 7926.829268 (Round to the nearest tenths)

$7926.83

Hope it helps!!!

3 0

3 years ago