I'll give the usual stuff of brainliest and thanks to the first person, plus some extra points.

Please help me with this question

jeyben [28]

Answer:

37

add all of them together then divide it by two

4 0

2 years ago

A box contains 24 transistors,4 of which are defective. If 4 are sold at random,find the following probabilities. i. Exactly 2 a

zavuch27 [327]

SOLUTION

This is a binomial probability. For i, we will apply the Binomial probability formula

i. Exactly 2 are defective

Using the formula, we have

$\begin{gathered} P_x=^nC_x\left(p^x\right?\left(q^{n-x}\right) \\ Where\text{ } \\ P_x=binomial\text{ probability} \\ x=number\text{ of times for a specific outcome with n trials =2} \\ p=\text{ probability of success = }\frac{4}{24}=\frac{1}{6} \\ q=probability\text{ of failure =1-}\frac{1}{6}=\frac{5}{6} \\ ^nC_x=\text{ number of combinations = }^4C_2 \\ n=\text{ number of trials = 4} \end{gathered}$

Note that I made the probability of being defective as the probability of success = p

and probability of none defective as probability of failure = q

Exactly 2 are defective becomes the binomial probability

$\begin{gathered} P_x=^4C_2\times\lparen\frac{1}{6})^2\times\lparen\frac{5}{6})^{4-2} \\ P_x=6\times\frac{1}{36}\times\frac{25}{36} \\ P_x=\frac{25}{216} \\ =0.1157 \end{gathered}$

Hence the answer is 0.1157

(ii) None is defective becomes

$\begin{gathered} \lparen\frac{5}{6})^4=\frac{625}{1296} \\ =0.4823 \end{gathered}$

hence the answer is 0.4823

(iii) All are defective

$\begin{gathered} \lparen\frac{1}{6})^4=\frac{1}{1296} \\ =0.00077 \end{gathered}$

(iv) At least one is defective

This is 1 - probability that none is defective

$\begin{gathered} 1-\lparen\frac{5}{6})^4 \\ =1-\frac{625}{1296} \\ =\frac{671}{1296} \\ =0.5177 \end{gathered}$

Hence the answer is 0.5177

3 0

9 months ago

PLEASE HELP

liq [111]

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Question
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$3 \times 1000 + 6 \times 100 + 1 \times 10 + 2 \times \frac{1}{10} + 1 \times \frac{1}{1,000}$

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Convert the fractions to decimals
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$3 \times 1000 + 6 \times 100 + 1 \times 10 + 2 \times 0.1 + 1 \times 0.001$

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Evaluate each term
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$3000 + 600 + 10 + 0.2 + 0.001$

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Add them up
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$3610.201$

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Answer : 3610.201
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3 0

3 years ago

What is the simplest form of i^15

Korolek [52]

Answer: -iSimplify the expression using the definition of an imaginary number

i = √ − 1 . − i

Step-by-step explanation: Simplify the expression using the definition of an imaginary number i = √ − 1 . − i

4 0

2 years ago

3. Which describes the steps that can be used to solve this problem?

vodka [1.7K]

C. is your answer!

To find the answer to this problem you must find how many ounces there are total in the first part of the problem...3 glasses and 5 oz. in each one (5*3)=15!

Then the extra two ounces you just add on to 15! 15+2=17 total ounces Brad poured!

Hope this helps! Would love brainliest;)

6 0

2 years ago

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