3 years ago

Smiplify d equation

Mathematics

2 answers:

Reptile [31]3 years ago

5 0

21/4

1.)Rewrite into fraction: 3/1 * 7/4
2.)Multiply: 21/4

Semmy [17]3 years ago

4 0

Answer:

$\frac{21}{4}$

Step-by-step explanation:

Given

3 × $\frac{7}{4}$ ← can be expressed as

$\frac{3}{1}$ × $\frac{7}{4}$

Multiply numerators/ denominators, that is

= $\frac{3(7)}{1(4)}$

= $\frac{21}{4}$

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3 years ago

If 8% of all cell phones are defective, and you have a random sample group of 100 Samsung Galaxy Vills,

Sati [7]

Answer:

Mean = 8

Variance = 7.36

Standard Deviation = 2.7129

Step-by-step explanation:

This is a binomial distribution with parameters, n and p.

Where

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p is the probability of success, or probability of defective (given as 8% or 0.08)

The mean, variance, standard deviation formula for binomial distribution is shown below:

Mean = $np$

Variance = $npq$

Standard Deviation = $\sqrt{npq}$

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Thus,

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SO, we have:

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5 0

3 years ago

Smiplify d equation​

Smiplify d equation