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3 years ago

A population has a standard deviation of 22. What is the standard error of the

Mathematics

1 answer:

KonstantinChe [14]3 years ago

3 0

Answer:

2.2

Step-by-step explanation:

Find square root of sample size then divid it by your standard deviation

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What is the probability of rolling a number greater than or equal to 8 with the sum of two dice given that at least one of the d

Basile [38]

One in 6 because dice goes up to 6

5 0

3 years ago

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You have 2 quarts of orange juice and 1 pint of cranberry juice to make a fruit punch.then you use 1 quart more of ginger ale th

Oliga [24]

Convert everything to pints and add them up.
1 quart is 2 pints
4 pints of OJ+1 pint of CJ+(2+4) pints of GA= 11 pints of fruit punch

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3 years ago

A bank in the Bay area is considering a training program for its staff. The probability that a new training program will increas

WITCHER [35]

Answer:

$P(B' \cup A') = P((A \cap B)') = 1-P(A \cap B)= 1-0.32=0.68$

See explanation below.

Step-by-step explanation:

For this case we define first some notation:

A= A new training program will increase customer satisfaction ratings

B= The training program can be kept within the original budget allocation

And for these two events we have defined the following probabilities

$P(A) = 0.8, P(B) = 0.2$

We are assuming that the two events are independent so then we have the following propert:

$P(A \cap B ) = P(A) * P(B)$

And we want to find the probability that the cost of the training program is not kept within budget or the training program will not increase the customer ratings so then if we use symbols we want to find:

$P(B' \cup A')$

And using the De Morgan laws we know that:

$(A \cap B)' = A' \cup B'$

So then we can write the probability like this:

$P(B' \cup A') = P((A \cap B)')$

And using the complement rule we can do this:

$P(B' \cup A') = P((A \cap B)')= 1-P(A \cap B)$

Since A and B are independent we have:

$P(A \cap B )=P(A)*P(B) =(0.8*0.4) =0.32$

And then our final answer would be:

$P(B' \cup A') = P((A \cap B)') = 1-P(A \cap B)= 1-0.32=0.68$

5 0

3 years ago

A picture is 5 inches wide and 8 inches tall.

olganol [36]

Answer:

100 in^2

Step-by-step explanation:

Solve Area first:

5x8

= 40

Multiply by 2.5 (Enlarge)

40 x 2.5

= 100

6 0

3 years ago

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Teach me how to add this problem

Arada [10]

start with the ones and every time it goes over ten take the first number and add it to the tens for example 1+8+4+8=21 take the one and put it in the one spot below. Then take the 2 and add it to the six in the tens spot so it would be Instead of 6+8+3+2 it would be 8+8+3+2 which would equal 21 then put the 1 u=in the ten spot below add the 2 to the hundreds spot making is 5+5+7=4=14 put the 4 Below and add the 1 the the thousands making it 3+4+5+1=13 put the one on the ten thousands and put the three below the whole problem would be 13,411.

7 0

3 years ago