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KengaRu [80]
3 years ago
15

Anyone know what this is

Mathematics
2 answers:
ioda3 years ago
5 0

Answer:

D: No, because on x-values corresponds to two different y-values.

Step-by-step explanation:

Two of the y-values are the same with different x-values

and so is x 8 couldn't be 5 and 8 it would have to have the same y-value

RUDIKE [14]3 years ago
4 0
D No, because one x-value corresponds to two different y-values
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Solve the proportion. 2/15 = x/60 a. 450 b.8 c.4 d.30
Bess [88]
2/15==x/60

Multiplly
60*2= 120
now divide
120/15= 8

x=8
6 0
3 years ago
Test the given claim. Identify the null​ hypothesis, alternative​ hypothesis, test​ statistic, P-value, and then state the concl
Firlakuza [10]

Answer:

Being π1: proportion of passenger cars with only rear plates, and π2: proportion of commercial trucks with only rear plates, the null and alternative hypothesis are:

H_0: \pi_1-\pi_2=0\\\\H_a:\pi_1-\pi_2

The test statistic is z=-1.895.

The P-value is 0.029.

The P-value (0.03) is bigger than the significance level (0.01), so the effect is not significant. The null hypothesis failed to be rejected.

There is no enough evidence to claim that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars.

Step-by-step explanation:

The claim is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. We have to test the hypotheses on the difference between proportions.

Being π1: proportion of passenger cars with only rear plates, and π2: proportion of commercial trucks with only rear plates, the null and alternative hypothesis are:

H_0: \pi_1-\pi_2=0\\\\H_a:\pi_1-\pi_2

The significance level is 0.01.

The passenger cars, with a sample size n1=2135, have a proportion of:

p_1=x_1/N_1=244/2135=0.114

The commercial trucks, with a sample size n2=339, have a proportion of:

p_2=x_2/N_2=51/339=0.150

The weighted proportion, needed to estimate the standard error, is calculated as:

p=\dfrac{x_1+x_2}{N_1+N_2}=\dfrac{244+51}{2135+339}=\dfrac{295}{2474}=0.119

The standard error for the difference between proportions can be calculated as:

\sigma=\sqrt{\dfrac{p(1-p)}{N_1}+\dfrac{p(1-p)}{N_2}}=\sqrt{\dfrac{0.119*0.881}{2135}+\dfrac{0.119*0.881}{339}}\\\\\\\sigma=\sqrt{ 0.00036 }= 0.019

Then, the z-statistic is:

z=\dfrac{p_1-p_2}{\sigma}=\dfrac{0.114-0.150}{0.019}=\dfrac{-0.036}{0.019}=  -1.895

The P-value for this left tailed test is:

P-value=P(z

The P-value (0.03) is bigger than the significance level (0.01), so the effect is not significant. The null hypothesis failed to be rejected.

There is no enough evidence to claim that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars.

6 0
3 years ago
Ms. Burkhard wants to trim the border below to get rid of the part that is torn. After
motikmotik
What is there to zoom inn?
3 0
2 years ago
What is the equation of the line that has a slope of 4 and passes through the point (3, -10?
irga5000 [103]
Hello 
the equation is y = ax+b
a the slop    a = 4
y = 4x+b
the line <span>passes through (3, -10) :  -10 = 6(3)+b
b = -28
</span>the equation is y = 6x-28
3 0
3 years ago
Please help with this problem
IRISSAK [1]
The slope is 2/3 because 3 - 1 = 2 and 0 - -3 = 3
3 0
3 years ago
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