Answer:
-12
Step-by-step explanation:
We can just try and find what works! since we can subtract 12 from -2 and get -14, we might try subtracting 12 every time. After we test it out, we see that is is correct!
Answer:
I used the function normCdf(lower bound, upper bound, mean, standard deviation) on the graphing calculator to solve this.
- Lower bound = 1914.8
- Upper bound = 999999
- Mean = 1986.1
- Standard deviation = 27.2
Input in these values and it will result in:
normCdf(1914.8,9999999,1986.1,27.2) = 0.995621
So the probability that the value is greater than 1914.8 is about 99.5621%
<u><em>I'm not sure if this is correct </em></u><em>0_o</em>
Assuming the inheritance is spread equally
$45600/22=
$2072.72727273
Answer:
Claim : The mean weight is greater than 16 ounces
x = 16.05
n = 50
Since n > 30 and population standard deviation is given
So, we will use z test
Substitute the values
Critical value at 0.05 significance level is 1.645
z statistic > critical value
So, we reject the null hypothesis
So, we can conclude that the mean weight is greater than 16 ounces .
We set up this expression that we have to simplify. Although, to make it an equation, we set the expression given equal to the variable y, making this a function too.
y=x-(2x+5)
distribute the negative symbol
y=x-2x-5
combine like terms
y=-x-5
and that is our final answer
