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3 years ago

11

How do you solve 5(1.24)

2 answers:

zzz [600]3 years ago

8 0

The answer is 6.2 your welcome :)

mezya [45]3 years ago

4 0

<u><em>6.2 is the correct answer.</em></u> First you had to remove parenthesis first, and it gave us, $5*1.24$ . And finally, you had to multiply by the numbers, and it gave us the answer is $5*1.24=6.2$ , and 6.2 is the final answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie

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Vinvika [58]

Answer:

a) 0.172

b) 0.167

c) 0.1404

Step-by-step explanation:

Margin of error, E = $2\times\sqrt{\frac{p(1-p)}{n}}$

here,

p = probability of the event

n = sample size

a) n = 30

p = 10 ÷ 30 = 0.333

Therefore,

E = $2\times\sqrt{\frac{0.333(1-0.333)}{30}}$

= 2 × 0.0861

= 0.172

b) n = 30

p = 21 ÷ 30 = 0.7

Therefore,

E = $2\times\sqrt{\frac{0.7(1-0.7)}{30}}$

= 2 × 0.0836

= 0.167

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Therefore,

E = $2\times\sqrt{\frac{0.44(1-0.44)}{50}}$

= 2 × 0.0702

= 0.1404

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3 years ago