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cricket20 [7]
3 years ago
6

A bonus activity in a popular video game allows the gamer to choose from several boxes to aquire a rare and useful item. The pro

bability of success is 0.2. With 35 attempts, find the standard deviation. O 2.4 O 7.0 O 5.6 O 0.2
Mathematics
1 answer:
sergiy2304 [10]3 years ago
8 0

Answer: the standard deviation is 2.4

Step-by-step explanation:

The formula for standard deviation is expressed as

s = √npq

Where

p = probability of success

q = probability of failure

n = number of samples

From the information given,

The probability of success, p is given as 0.2. It means that the probability of failure, q will be 1 - p = 1 - 0.2 = 0.8

There were 35 attempts. This means that total number of samples, n is 35

The standard deviation becomes

√35×0.2×0.8 = √5.6 = 2.366

Approximately 2.4

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Help please just answer would be fine
scZoUnD [109]

The amount of water decreases 16\frac{1}{2} pints in 12 weeks.

Solution:

The amount of water decreases in 7 weeks = 9\frac{5}{8} pints

The amount of water decreases each week is same.

Let us first change the mixed fraction into improper fraction.

9\frac{5}{8} pints = \frac{(9\times8)+5}{8}

             =\frac{77}{8} pints

The amount of water decreases in 1 week

              $=\frac{\frac{77}{8} }{7}

              =\frac{77}{8\times7}

              =\frac{11}{8}

So, the amount of water decreases in 1 week is \frac{11}{8} pints.

The amount of water decreases in 12 week

               =\frac{11}{8}\times12

               =\frac{132}{8}

               =16\frac{4}{8}

               =16\frac{1}{2} pints

Hence the amount of water decreases 16\frac{1}{2} pints in 12 weeks.

4 0
3 years ago
PLZ I NEED HELP A crate of bananas has a mass of 674.8 dekagrams. What is the mass of the crate of bananas in centigrams? Use th
hjlf

Answer:D

Step-by-step explanation:

8 0
3 years ago
You buy butter for $3.31 a pound.
Sav [38]

Answer:

$0.23

Step-by-step explanation:

Theres 16 ounces in a pound. 16-1.7=14.3

divide $3.31 by 14.3

0.23

8 0
3 years ago
Read 2 more answers
PLEASE HELP 20 POINTS PLEASE HELP BROOO
Ulleksa [173]

Answer: 31700 sq mi

Step-by-step explanation: Well in order to find out the sq mi for Lake Superior you will add 7340 and 24360 which equals 31700 sq mi.

7 0
3 years ago
How does the graph of g(x)= 1/x-5+2 compared to the graph of the parent function f(x)=1/x?
Finger [1]

Answer: The graph is shifted to the right by 5 units and shifted up from the parent function.

Step-by-step explanation:

1. By definition, a parent function is the simplest form of a function.

2. You have the following parent function given in the problem:

f(x)=\frac{1}{x}

2. The function g(x) is obtained from the function f(x)

g(x)=\frac{1}{x-5}+2

Where the subtraction of 5 indicates the horizotanl shift to the left and the addition of 2 indicates the vertical shift up.

3. Therefore, keeping the information above on mind, you can conclude that the answer is: the graph is shifted to the right by 5 units and shifted up from the parent function.

3 0
3 years ago
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