If n = 10 and p = 0.70, then the standard deviation of the binomial distribution is

1 answer:

6 0

For a binomial distribution, the variance is
$\sigma^2=npq=np(1-p)=10*0.7*0.3=2.1$
$\sigma=standard\,deviation=\sqrt{2.1}=1.449$ (to 3 decimal places)

You might be interested in

See attached file. show all work.

andrew11 [14]

The point-slope form of the equation for a line can be written as

... y = m(x -h) +k . . . . . . . for a line with slope m through point (h, k)

Your function gives

... f'(h) = m

... f(h) = k

a) The tangent line is then

... y = 5(x -2) +3

b) The normal line will have a slope that is the negative reciprocal of that of the tangent line.

... y = (-1/5)(x -2) +3

_____

You asked for "an equation." That's what is provided above. Each can be rearranged to whatever form you like.

In standard form, the tangent line's equation is 5x -y = 7. The normal line's equation is x +5y = 17.

3 0

3 years ago

Classify the triangle by side length and angle measurement

sveta [45]

Answer:

this triangle seems to be an isosceles, obtuse triangle

5 0

2 years ago

If you roll a dice 100 times how many times would you expect to roll a product that is a multiple of 5

Luden [163]

If you're rolling a single cube, then ...

-- There are 6 possible out comes.
-- One of them (5) is a multiple of 5 .
-- The probability of rolling it is (1/6) = 16-2/3 % .

If everything is acting perfectly random, then ion 100 rolls,
you'd expect to succeed 16 or 17 times.

If you're rolling a pair of cubes, then ...

-- There are (6 x 6) = 36 possible outcomes.
-- There are seven ways to get a multiple of 5.
(1+4), (4+1), (2+3), (3+2), (4+6), (6+4), (5+5)
-- The probability of rolling one of those is
(7/36) = 19-4/9 % .

If everything is acting perfectly random, then in 100 rolls,
you'd expect to succeed 19 or 20 times.

3 0

3 years ago

Can anyone help solve this equation?

koban [17]

Answer:

Step-by-step explanation:

3 x 3 = 9

7 + 3 = 10

7 + ? = 3 + 7 + 3 + 7

7 + ? = 20

? = 13

3 0