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3 years ago

What is the percent increase.? original quantity :100 new quantity 106

Mathematics

2 answers:

bazaltina [42]3 years ago

7 0

The percent increase is 6% because it increased by 6 and 6 is 6% of 100.
Hope this helps!

avanturin [10]3 years ago

3 0

we know that

the number $100$ (original quantity) represent the $100\%$

the number $106$ (new quantity) represent the $x\%$

Step $1$

by proportion find the value of x%

$\frac{100}{100\%} =\frac{106}{x\%}\\\\x*100=100*106\\ \\x=106\%$

Step $2$

Find the increase percentage

$increase\ percentage=106\%-100\%=6\%$

therefore

the answer is

The percent increase is $6\%$

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To calculate the probability that Jodi scores 78% or less on a 100-question test, we first calculate the z-value:

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b) In this case, the number of questions is 250, so the standard deviation needs to be calculated again:

$\sigma=\sqrt{\frac{p(1-p)}{n} }= \sqrt{\frac{0.85*(1-0.85)}{250} }=0.02$

To calculate the probability that Jodi scores 78% or less on a 250-question test, we first calculate the z-value:

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The probability for this value of z is

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