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3 years ago

Name 5 differences between a square and a rectangle

Mathematics

2 answers:

snow_lady [41]3 years ago

8 0

<span>all the sides,angels will always be equal and in the rectangle opposite sides and angels will be equal.</span>

attashe74 [19]3 years ago

7 0

All sides are equal in a square .2 opposite sides are equal in a rectangle. the angels are equal in a square .2 opposite are equal in a rectangle. the square all the sides,angels will always be equal and in the rectangle opposite sides and angels will be equal.

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Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. Whe

podryga [215]

Answer:

The value is $n = 384$

The correct option is a

Step-by-step explanation:

From the question we are told that

The margin of error is E = 0.05

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally since the sample proportion is not given we will assume it to be

$\^ p = 0.5$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )$

=> $n = [\frac{ 1.96 }{0.05} ]^2 *0.5 (1 - 0.5)$

=> $n = 384$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

Generally if the level of confidence increases, the critical value of $\frac{\alpha }{2}$ increase and from the equation for margin of error we see the the critical value varies directly with the margin of error , hence the margin of error will increase also

So If the confidence level is increased, then the sample size would need to increase because a higher level of confidence increases the margin of error.

8 0

3 years ago

What is 2/5 divided by 1/4

Virty [35]

The answer for 2/5 divided by 1/4 is 0.1

8 0

3 years ago

Hellppp me this is hard

ad-work [718]

Answer:

Step-by-step explanation:

its is that because it would mean he would be going 65 whuch its asking for a general speed.

8 0

3 years ago

WHAT IS 1/2 + 3/4 PLZ ANSWER REALLY REALLY URGENT!!!!!!!!!!!!!

Gnesinka [82]

Answer: it is 1.25

hope i helped

5 0

3 years ago

Read 2 more answers

Use the Empirical Rule to answer each question.

Oliga [24]

Step-by-step explanation:

(a)

the probability of parcels weighing 35oz or less is

0.841

the probability of parcels weighing 14oz or less is

0.023

the probability of parcels weighing between 14 and 35oz is the probabilty of 35oz minus the probability of 14oz

0.841 - 0.023 = 0.818

the percentage is the probability × 100 = 81.8%

(b)

the probability of parcels weighing more than 49oz is 1 minus the probability to weigh less than 49oz.

the probability to weigh less than 49oz is

0.99865

so, the probability to weigh more than 49oz is

1 - 0.99865 = 0.00135

the percentage is again probability×100 = 0.14%

7 0

3 years ago