All categories

3 years ago

20 question ach containing three answers quiz probability of getting no points? worksheet

1 answer:

5 0

The probability of getting no points on any given question is 2/3, so for 20 independent questions, it is (2/3)^20 ≈ 3.007*10^-4.

You might be interested in

In the triangle below what ratio is cot G

hoa [83]

Answer:

h/g

Step-by-step explanation:

we know that

The cotangent of angle G is equal to divide the adjacent side angle G to the opposite side angle G

cot(G)=h/g

5 0

2 years ago

A fruit company has 20% returns in periods of normal rainfall and -3% returns in droughts. The probability of normal rainfall is

WARRIOR [948]

Answer:

$E(x) = 10.8\% \\\\$

The fruit company’s expected returns are 10.8%

Step-by-step explanation:

The expected returns of the fruit company is given by

$E(x) =\sum (x \cdot P(x)) \\\\$

For the given case,

Returns in normal rainfall = x₁ = 20% = 0.20

Returns in drought = x₂ = -3% = -0.03

Probability of normal rainfall = P(x₁) = 60% = 0.60

Probability of drought = P(x₂) = 40% = 0.40

So, the expected value of returns is

$E(x) = x_1 \cdot P(x_1) + x_2 \cdot P(x_2) \\\\E(x) = 0.20 \cdot 0.60 - 0.03 \cdot 0.40 \\\\E(x) = 0.12 - 0.012 \\\\E(x) = 0.108 \\\\E(x) = 10.8\% \\\\$

Therefore, the fruit company’s expected returns are 10.8%

7 0

3 years ago

John traveling to a meeting that is the 28 miles away he needs to be there in 30 min,how fast does he need to go to make it to t

Degger [83]

Answer:

30 mph

Step-by-step explanation:

3 0

2 years ago

A basketball player is fouled while attempting to make a basket and receives two free throws. The opposing coach believes there

Elan Coil [88]

B not quiet sure but if anything try again : )

6 0

2 years ago

If the black cloth absorbs heat energy, why was the ice cube at room temperature covered with the black cloth the slowest to mel

lozanna [386]

The cloth acts as insulation it doesn't matter the colour . And as to Black cloth attracting Heat this is only partially true if you put a black cloth in the room with no windows and the temperature of the room was 70° the cloth will not get any hotter black cloth absorbs infrared energy this makes it feel warmer

5 0

2 years ago