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3 years ago

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I rolled a number cube 150 times. The outcome of 3 occured 20 times. What is the EXPERIMENTAL probability of rolling a 3.

1 answer:

Sidana [21]3 years ago

7 0

Answer:

2/15

Step-by-step explanation:

Experimental probability is the chance of getting the desired outcone out of the maximum possible outcome. In this case, the outcome desired is for rolling 3 which is 20 but the total possible outcome is 150. The theoritical probability would be 1/6 for six sided but the experimental probability is 20/150

When simplified, 20/150=2/15

Therefore, experimental probability is 2/15

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Me pueden ayudar porfa

xz_007 [3.2K]

Answer:

same question bro

Step-by-step explanation:

7 0

3 years ago

The volume of a 10 ounce box of cheerios is 258.75in3. the length of the box is 4 inches less than the height and the width is 3

Marina86 [1]

Answer:

Height of the box = 11.5 in

Step-by-step explanation:

Let h be the height of the box.

Assuming the volume of the Box is $258.75\ in^3$ .

Given:

Length = Height - 4 = h - 4

Width = 3 in

We need to find the height of the box.

Solution:

We know that the volume of the box.

$Volume = Length\times height\times width$

Substitute all given value in above formula.

$258.75 = (h-4)\times h\times 3$

Rewrite the equation as:

$258.75 = 3h(h-4)$

$258.75 = 3h^2-12h$

$3h^2-12h-258.75=0$

whole equation divided by 3.

$h^2-4h-86.25=0$

Use quadratic formula with $a = 1, b = -4,c=-86.25$

$h=\frac{-b\pm \sqrt{(b)^{2}-4ac}}{2a}$

Put these a, b and c value in above equation.

$h=\frac{-(-4)\pm \sqrt{(-4)^{2}-4(1)(-86.25)}}{2(1)}$

$h=\frac{4\pm \sqrt{16+345}}{2}$

$h=\frac{4\pm \sqrt{361}}{2}$

$h=\frac{4\pm 19}{2}$

For positive sign

$h=\frac{23}{2}$

h = 11.5 in

For negative sign

$h=\frac{-15}{2}$

h = -7.5

We take positive value of h.

Therefore, the height of the box h = 11.5 in

4 0

3 years ago

Tell whether it is possible to draw a figure with the given description.

sesenic [268]

Answer:

<h2>in my opinion it is not possible </h2>

Step-by-step explanation:

hope it helps you have a good day

3 0

3 years ago

Please help will give brainliest please give me the right answer

Naily [24]

Answer:

b

Step-by-step explanation: its b

3 0

3 years ago

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 8.4 years, and standard deviation of

QveST [7]

Answer:

7.35 years

Step-by-step explanation:

Given that :

mean = 8.4

standard deviation = 0.6

From the negative z tables, the corresponding data for 0.04 = -1.75

So, using the z-score formula:

$z = \dfrac{x - \mu}{\sigma}$

$-1.75 = \dfrac{x - 8.4}{0.6}$

-1.75 × 0.6 = x - 8.4

- 1.05 = x - 8.4

x = -1.05 + 8.4

x = 7.35 years

the shortest lifespan will last less than 7.35 years

∴ the longest 4% will have lifespans longer than x = 8.4 + 1.75(0.6)

= 9.45 years

3 0

3 years ago