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romanna [79]
3 years ago
11

44% of all statistics classes require a statistical calculator and 27% require the use of a computer that has statistical softwa

re. Of the classes that require a statistical calculator, 15% also require the use of a computer. If a statistics course is selected at random find: (round to 4 decimal places where possible) a. P(Statistical Calculator) = Correct b. P(Statistical Software) = Correct c. P(Require a Statistical Calculator and Statistical Software) = d. P(Require a Statistical Calculator GIVEN Require Statistical Software) =
Mathematics
1 answer:
atroni [7]3 years ago
7 0

2Step-by-step explanation:

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PLEASE HELP: Question above ☝☝☝
Xelga [282]
I'm actually pretty sure it's B
7 0
4 years ago
Read 2 more answers
Ab-0.5bab−0.5ba, b, minus, 0, point, 5, b when a=1a=1a, equals, 1 and b=5b=5
barxatty [35]

Answer:

  2.5

Step-by-step explanation:

Put the values in place of the corresponding variables and do the arithmetic:

  ab - 0.5b = (1)(5) -0.5(5) = 5 - 2.5 = 2.5

4 0
3 years ago
Please help with this!!!
ehidna [41]

Answer:

  47.25 ft³

Step-by-step explanation:

The volume of the prism is given by the formula ...

  V = Bh . . . . . . . B is the area of the base, h is the height.

The height of the prism is given as 6 ft. The area of the base is the area of the triangular entrance. The formula for that area is ...

  A = 1/2bh . . . . . . b is the base, h is the height

Using the given values for the entrance base and height, we get ...

  A = 1/2(4.5 ft)(3.5 ft) = 7.875 ft²

Then the volume of the tent is ...

  V = (7.875 ft²)(6 ft) = 47.25 ft³

The tent volume is 47.25 cubic feet.

8 0
3 years ago
write the slope intercept form of an equation of the line that passes through (4,3) that is perpendicular to the line Y=-3x-15
cricket20 [7]
If two lines are perpendicular, then their slopes have a product of -1 or you could say they are opposite signed reciprocals of each other.
The given equation has a slope of -3.  We know this because it is in slope-intercept form y = mx + b ...y = (slope)x + (y-intercept).

so taking the slope -3...the opposite signed reciprocal would be +\frac{1}{3}

Now we have a slope and a point... we can use them to find the b (y-intercept)
x = 4, y = 3, and m = \frac{1}{3}
3= \frac{1}{3} (4)+b
3= \frac{4}{3} +b
Using the common denominator fraction for 3, we subtract 4/3 from both sides
3= \frac{9}{3}
\frac{5}{3} =b
plug the values for m and b into the slope intercept form
y= \frac{1}{3} x+ \frac{5}{3}
7 0
3 years ago
Is g(x) = x(x - 4)[x-i(Square root of 7)][x+i(Square root of 7)] the factored form of f(x) = x^4+4x^3+7x^2+28x
erastova [34]

Answer:

No.

It's  x^4 - 4x^3 + 7x^2 - 28x.

Step-by-step explanation:

(x - √7 i)(x +√7i)

= x^2 + √7x i - √7x i - 7 i^2

= x^2 - 7 * -1

= x^2 + 7

g(x) = x(x - 4)(x^2 + 7)

= x(x^3 + 7x - 4x^2 - 28)

= x^4 - 4x^3 + 7x^2 - 28x.

6 0
3 years ago
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