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2 years ago

100 POINTS

Mathematics

2 answers:

m_a_m_a [10]2 years ago

7 0

Answer:

If 7 is deleted from the set, the median will stay the same.

About half of the values are greater than the mean.

If 2 is deleted from the set, the median will stay the same.

If one of the 5s is deleted from the set, the set will become bimodal.

PIT_PIT [208]2 years ago

6 0

Answer:

The correct ones are:

About half of the values are greater than the mean.

If 2 is deleted from the set, the median will stay the same.

If one of the 5s is deleted from the set, the set will become bimodal.

Step-by-step explanation:

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There are 42 more red marbles in a jar than there are white marbles. If there are 238 marbles in the jar, how many of them are r

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Answer:

white:77 red:161

Step-by-step explanation:

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3 years ago

1. Ann took out a loan at the Bank of Florida with a principle amount of $12,000, at an interest rate of 5.65% for 4 years. What

fredd [130]

Answer:

1. $2,950.62

2. $93.75

Step-by-step explanation:

Ann took out a loan of = $12,000

At an interest rate of = 5.65%

Time = 4 years

Formula of compound interest = $A=P(1+\frac{r}{n})^{nt}$

= $A=12,000(1+\frac{0.0565}{1})^{1\times 4}$

= $12,000(1.0565)^{4}$

= 12,000 × 1.24588514

Interest = Amount - principal amount

= $14,950.62 - 12,000

= $2,950.62

Amount that Dan borrowed = $1,250

rate of interest = 5%

Time = 18 months or 1.5 years

Formula of simple interest = P(1+rt)

= 1250(1+(0.05 × 1.5))

= 1250(1+0.075)

= 1250 × 1.075

= 1343.75

Interest = Amount - principal

I = 1343.75 - 1250

= $93.75

8 0

3 years ago

When the health department tested private wells in a county for two impurities commonly found in drinking water, it found that 2

guajiro [1.7K]

Answer:

P( Y = 0 ) = 0.2

P( Y = 1 ) = 0.7

P( Y = 2 ) = 0.1

Step-by-step explanation:

If 20% of wells didnt have impurities it could be said as that the probability that it didnt have A and didnt have B was 0.2:

P( not A ) ∩ P ( not B ) = 0.2

Also:

P( A ) = 0.4

P( B ) = 0.5

The formulas for the union of both impurities are:

P( A ) ∪ P( B ) = P( A ) + P ( B ) - P( A ) ∩ P ( B )

P( A ) ∪ P( B ) = 1 - P( not A ) ∩ P ( not B )

Replacing and solving you get:

P( A ) + P ( B ) - P( A ) ∩ P ( B ) = 1 - P( not A ) ∩ P ( not B )

0.4 + 0.5 - P( A ) ∩ P ( B ) = 1 - 0.2

P( A ) ∩ P ( B ) = 0.1

So the probability that the wells had both impurities is 0.1

P( A ) ∪ P( B ) = 0.8

This counts as having one of the impurities or both, in order to only have one impurity you need to substract when you have both:

one impurity = P( A ) ∪ P( B ) - P( A ) ∩ P ( B ) = 0.8 - 0.1 = 0.7

Now Y is the probabilty distribuion for the numbers of impuritis.

P( Y = 0 ) = 0.2 ( 0 impurities )

P( Y = 1 ) = 0.7 ( only 1 impurity )

P( Y = 2 ) = 0.1 ( 2 impurities )

3 0

4 years ago

I need help on this qustion

erastova [34]

what I put into my basic calculator is 5(3/4)-6(1/8)= 3 ft

3 0

4 years ago

Sharla’s recipe for 4 servings of stew has 2 potatoes and 4 celery sticks. How many potatoes and celery sticks does she need to

kumpel [21]

Answer:

4 servings : 2 potatoes and 4 celery sticks. Find the number of potatoes and celery sticks in 6 servings. 6/4 = 1.50 2 potatoes x 1.50 = 3 potatoes 4 celery sticks x 1.50 = 6 celery sticks 6 servings of stew has 3 potatoes and 6 celery sticks. Other way of computing for the 6 servings is getting the number of potatoes and celery sticks per serving.

Step-by-step explanation:

5 0

3 years ago

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