Hey, I was just wondering what is 1/3 + 1/2?

Mathematics

2 answers:

Semenov [28]3 years ago

6 0

Answer:

Step-by-step exp5/6

cestrela7 [59]3 years ago

3 0

Answer:

5/6

Step-by-step explanation:

1/3 x 2/2 = 2/6

1/2 x 3/3 = 3/6

2/6 + 3/6 = 5/6

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The chocolate chip recipe calls f6 3 1/3 cup9 of milk we only have 1 2/3 cups at home how much more milk do we need

hram777 [196]

Answer:

2 1/3

Step-by-step explanation:

you have to take away 3 1/4 and 1 2/3

8 0

3 years ago

How do I make this bell curve

Zanzabum

The mean you found is correct, but the standard deviation is not. Recall that the standard deviation $\sigma_s$ ( $s$ for sample) of $n$ points is given by

$\sigma_s=\sqrt{\dfrac1{n-1}\displaystyle\sum_{1\le i\le n}(x_i-\bar x)^2}$

where $n=10$ is the sample size, $\bar x=3740$ is the sample mean, and $x_i$ are the prices listed in the circled column. So

$\sigma_s=\sqrt{\dfrac{(3640-3740)^2+(7595-3740)^2+\cdots+(3390-3740)^2}{10-1}}$

$\implies\sigma_s\approx1443.98\approx1444$

I can't tell if you need to provide any more info beyond this, but given there's a plot of a generalized bell curve, I think you're also supposed to label the plot.

At the center of the bell-shaped/normal distribution is the mean. Notice there are three tick marks to either side of the mean - these are probably supposed to represent prices that fall exactly 1, 2, and 3 standard deviations from the mean. These are, from left to right,

$\bar x-3\sigma_s\approx3740-3(1444)=-592$