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Eddi Din [679]
3 years ago
7

In a normal distribution, 95% of the data falls within 1 standard deviation of

Mathematics
2 answers:
Nina [5.8K]3 years ago
7 0

<u>Answer:</u>

False

<em>Please Give Brainliest</em>

podryga [215]3 years ago
3 0

Answer:

true

Step-by-step explanation:

??

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I do not understand this question I am confused!
kati45 [8]
H is the answer. This is because if you fold 3 in half it won't be equal.
6 0
3 years ago
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Please third time asking I’ll mark brainliest
hoa [83]

Answer: A≈440.44

Step-by-step explanation:

4 0
2 years ago
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Estimate the amount of the tip by rounding the bill to the nearest dollar before calculating.
Serggg [28]

Answer:

11.8

Step-by-step explanation:

Rounding 59.03 you get 59.
20% of 59 = 11.8
11.8 = the tip.

5 0
2 years ago
Math question #1 please show steps
-Dominant- [34]

Answer:

C

Step-by-step explanation:

An approximation of an integral is given by:

\displaystyle \int_a^bf(x)\, dx\approx \sum_{k=1}^nf(x_k)\Delta x\text{ where } \Delta x=\frac{b-a}{n}

First, find Δx. Our a = 2 and b = 8:

\displaystyle \Delta x=\frac{8-2}{n}=\frac{6}{n}

The left endpoint is modeled with:

x_k=a+\Delta x(k-1)

And the right endpoint is modeled with:

x_k=a+\Delta xk

Since we are using a Left Riemann Sum, we will use the first equation.

Our function is:

f(x)=\cos(x^2)

Therefore:

f(x_k)=\cos((a+\Delta x(k-1))^2)

By substitution:

\displaystyle f(x_k)=\cos((2+\frac{6}{n}(k-1))^2)

Putting it all together:

\displaystyle \int_2^8\cos(x^2)\, dx\approx \sum_{k=1}^{n}\Big(\cos((2+\frac{6}{n}(k-1))^2)\Big)\frac{6}{n}

Thus, our answer is C.

*Note: Not sure why they placed the exponent outside the cosine. Perhaps it was a typo. But C will most likely be the correct answer regardless.

5 0
3 years ago
mrs peele has 11 1/4 pounds of cookie dough a batch of cookies requires 2 1/2 of cookie dough how many batchesof cookie dough ca
Vladimir79 [104]

Answer:

4.5 lbs

Step-by-step explanation:

just divide 11.25 by 2.5

3 0
2 years ago
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