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Akimi4 [234]
3 years ago
7

Of the 4 people who have signed up for a genetics lecture, 2 have green eyes. Considering this data, how many of the next 10 peo

ple to sign up should you expect to be green-eyed?
Mathematics
1 answer:
Feliz [49]3 years ago
5 0

Answer: 5

Step-by-step explanation:

2 of the first 4 people had green eyes which gives us a percentage of 50% so if we apply the same percentage to the next 10 people 5 of them should have green eyes.

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Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 7.8 parts
Alexxandr [17]

Answer:

The value of the test statistic is t = 2.67

Step-by-step explanation:

The null hypothesis is:

H_{0} = 7.8

The alternate hypotesis is:

H_{1} \neq 7.8

Our test statistic is:

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

In this problem, we have that:

X = 8.2, \mu = 7.8, \sigma = 0.6, n = 16

Then

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

t = \frac{8.2 - 7.8}{\frac{0.6}{\sqrt{16}}}

t = 2.67

The value of the test statistic is t = 2.67

5 0
3 years ago
15) My bag contains two books each of weight kg and 3/7 folders each of weight
8_murik_8 [283]

Answer:

Step-by-step explanation:

221

3 0
3 years ago
Read 2 more answers
Each costume needs 64 cenemeters of red ribbon and 3 times as much of yellow ribbon. What is the total length of ribbon needed f
butalik [34]

Answer:

The answer is .................................................94

4 0
3 years ago
Drag steps in the given order to evaluate this expression.
Orlov [11]

Answer:

5

Step-by-step explanation:

(-3)(2)-7(-3)-10

-6+21-10

15-10

5

5 0
3 years ago
Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina's rate in mil
BabaBlast [244]
We know that 
3600 seconds = 1 hour
Then
3400 seconds = 3400/3600
                        = 17/18 hours
5280 feet = 1 mile
Then
63360 feet = 63360/5280 mile
                  = 12 mile
So
Distance covered by Nina in 17/18 hours = 12 mile
Then
Distance covered by Nina in 1 hour = 12/(17/18) miles
                                                         = 12.71 miles.
From the above deduction, we can conclude that the speed of Nina is 12.71 miles per hour.
Speed of Sophia is 10 miles per hour. So Nina is the girl that rides at a faster speed.
4 0
3 years ago
Read 2 more answers
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