Answer:
£210
Step-by-step explanation:
Given that :
Visa cost = £2300
7% charge of visa price = (0.07 * £2300) = £161
Total cost = £(161 + 2300) = £2461
Amount to be saved per month = £2461 / 12 = £205.08333
= £210 (nearest £10)
The p value of the test when the cell phone user wants to determine what data plan she should get is 0.1324.
<h3>What is a P value?</h3>
The p-value is a figure that, when generated from a statistical test, indicates how likely it is that, if the null hypothesis were true, you would have discovered a certain collection of observations. In order to determine whether to reject the null hypothesis, P-values are utilized in hypothesis testing.
The following can be deduced from the information:
Number = 15
Mean = 11.25
Standard deviation = 2.5
Test statistics = -1.162
This is the left tailed test.
The p value will be:
P(z < -1.162 )
This will be looked at in the distribution table
= 0.1324
P-value = 0.1324
Learn more about p value on:
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Answer:
x=5
Step-by-step explanation:
subtract x from both sides 2x-1x=1x
so x=5
Answer: f(3.5) = 58.20
Step-by-step explanation:
Wow...what degree of exponent are we to assume?
I'll go with 2 as we are only given two exemplars.
f(x) = x² + Ax + B
f(- 2.5) = 9 = (-2.5)² + (-2.5)A + B
f(2.5) = 45 = (2.5)² + (2.5)A + B
we can subtract the first equation from the second
45 - 9 = 2.5² - (-2.5)² + 2.5A - (-2.5A) + B - B
36 = 5A
A = 7.2
45 = (2.5)² + (2.5)7.2 + B
B = 20.75
F(3.5) = 3.5² + 7.2(3.5) + 20.75 = 58.2
Answer:
I think the answer would be C.
Step-by-step explanation:
hope I help