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1 year ago

Two numbers are randomly selected on a number line numbered from 1 to 9. Match each scenario to its probability.

Mathematics

2 answers:

Talja [164]1 year ago

5 0

Answer:

1/9; 4/9; 1/12; 1/6

Step-by-step explanation:

the probability that both numbers are greater than 6 if the same number can be chosen twice--> 3/9 * 3/9 = 1/9

the probability that both numbers are less than 7 if the same number can be chosen twice --> 6/9 * 6/9 = 4/9

the probability that both numbers are odd numbers less than 6 if the same numbers cannot be chosen twice --> 3/9 * 2/8 = 1/12

the probability that both numbers are even numbers if the same numbers cannot be chosen twice --> 4/9 * 3/8 = 1/6

maxonik [38]1 year ago

4 0

Answer:

1/9; 4/9; 1/12; 1/6

Step-by-step explanation:

greater than 6 not chosen twice = 1/12

greater than 6 can be twice = 1/9

Less than 7 and can be chosen twice = 4/9

both are even but cannot be chosen twice =1/6

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Sociologists want to test whether the number of homeless people in a particular urban area is increasing. In 2010, the average n

Kobotan [32]

Answer:

The test statistic value is 15.3.

Step-by-step explanation:

The hypothesis for this test is:

H₀: The average number of homeless people is not increasing, i.e. μ = 42.3.

Hₐ: The average number of homeless people is increasing, i.e. μ > 42.3.

Given:

$\bar x=45.3\\\sigma=6.2\\n=1000$

As the population standard deviation is provided use a single mean z-test for the hypothesis testing.

The test statistic is:

$z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}=\frac{45.3-42.3}{6.2/\sqrt{1000}}=15.3$

Thus, the test statistic value is 15.3.

7 0

1 year ago

Using the information given, select the statement that can deduce the line segments to be parallel. If there are none, then sele

Shtirlitz [24]

Answer:

AB = DC

Step-by-step explanation:

Applying the information provide in the attached diagram , The statement that can deduce the line segments to be parallel is : AB = DC

when M2 = M3

attached below is the missing diagram as related to this question above

4 0

2 years ago

A warehouse store sells 4.5-ounce cans of tuna in packages of 3. A package of 3 cans costs $4.32. The store also sells 3.5-ou

disa [49]

Answer:

The 6.5-ounce cans offer the largest size at a fair cost and is the best to buy.

Step-by-step explanation:

Size of the 4.5-ounce cans of tuna in package = 4.5 × 3 = 13.5 ounce

Cost of the package= $4.32

Size of the 3.5-ounce cans = 3.5 × 4 = 14 ounce

Cost of the package= $3.92

Size of the 6.5-ounce cans = 6.5 × 5 = 32.5 ounce

Cost of the package= $9.75

The 6.5-ounce cans offer the largest size and is the best to buy.

7 0

1 year ago

Mua hàng hóa 10000kg về nhập kho,Đơn giá 200 000đ/kg,thuế gtgt là 10%,trả bằng chuyển khoản 50%,còn nợ người bán.Chi phí vận chu

Savatey [412]

I don’t think so it’s right question

6 0

1 year ago

Steve can wash, fold, and iron a basket of laundry in two hours and prepare a meal in one hour. His roommate Mike can wash, fo

masha68 [24]

Answer: The absolute advantage in laundry is held by Steve while the comparative advantage in meal preparation is held by Mike.

Step-by-step explanation:

Absolute advantage is when an individual, firm or country can produce a good or service at a lower cost when compared to the other economic agent. When someone has absolute advantage, it means that the person uses fewer resources and spends less time in producing the good. Based on the explanation, Steve has absolute advantage in laundry since he spends two hours compared to Mike who uses 3hours.

Comparative advantage is when an individual, firm or government can produce a good or service with a lower opportunity cost when compared to the other person. Mike has a comparative advantage in the preparation of meal. It'll be better for Steve to focus his attention on laundry while Mike does the meal.

7 0

2 years ago