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MaRussiya [10]
3 years ago
13

2and twelve thirteenth was equal

Mathematics
2 answers:
larisa [96]3 years ago
8 0

Answer:

what do u need help with

Step-by-step explanation:

Serhud [2]3 years ago
3 0
Im confused honestly too
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A dart hits the circular dartboard shown below at a random point. Find the probability that the dart lands in the shaded circula
Feliz [49]
The probability of it landing in the shaded area is 4/10, or 2/5 simplified, or 40%. Hope this helps! <3
7 0
3 years ago
Read 2 more answers
How many 6-ounces cups can be filled from 4 gallons of juice
solmaris [256]
1 gallon = 128 oz
128/6= 21.33 cups
4x21.33= 85 cups

4 0
3 years ago
A demographer wants to measure life expectancy in countries 1 and 2. Let μ1 and μ2 denote the mean life expectancy in countries
Art [367]

Answer:

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

Null hypothesis: \mu_1 \leq \mu_2 -10

Alternative hypothesis:\mu_1 > \mu_2 -10

Or equivalently:

Null hypothesis: \mu_1 - \mu_2 \leq 10

Alternative hypothesis:\mu_1 - \mu_2 >10

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

Null hypothesis: \mu_1 \leq \mu_2 -10

Alternative hypothesis:\mu_1 > \mu_2 -10

Or equivalently:

Null hypothesis: \mu_1 - \mu_2 \leq 10

Alternative hypothesis:\mu_1 - \mu_2 >10

7 0
2 years ago
Find the volume of the solid.<br> 11 cm<br> 11 cm<br> 11 cm
grin007 [14]

Answer:1331cm

Step-by-step explanation:vol=lbh

11*11*11cm=1331cm

6 0
3 years ago
HELp PLs due in like 2 hours and I have more questions do :(((((<br> Problem in picture
MrRa [10]
Donkey, shrike style
6 0
2 years ago
Read 2 more answers
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