There’s no diagram or list of equations so can’t really help you on that one
Answer:
dont cheat on hw
Step-by-step explanation:
Answer:
Step-by-step explanation:
The mean,
, is 90 and the standard deviation,
, is 12. We are looking for the probability that the variable X will fall between 57 and 105. We use the z-score table for this, AFTER we find the z scores. The formula to find the z-scores for us is:
and we fill in accordingly:
which simplifies to
and we will break them up into 2 different sets as follows:
P(-2.75 ≤ z ≤ 0) + P(0 ≤ z ≤ 1.25)
and based on the fact that z scores are given from 0 on up, we are going to convert the first one by using the logic that if z is greater than -2.75 but less than 0, by symmetry, z is greater than 0 but less than 2.75:
P(0 ≤ z ≤ 2.75) + P(0 ≤ z ≤ 1.25) and we go to the z-score table.
Locate 2.7 down along the left side and move over til you're under the .05; that gives us the z-score for 2.75 which is .4970. Do the same for 1.25 to get a z-score of .3944. Add them together to get a final z-score that covers the range of values for X:
.4970 + .3944 = 0.8914
I will help you ok .<span>7<span>78</span></span><span>=<span><span>71</span><span>78</span></span></span><span>=<span><span>(<span>71</span>)</span><span>(<span>87</span>)</span></span></span><span>=<span><span><span>(7)</span><span>(8)</span></span><span><span>(1)</span><span>(7)</span></span></span></span><span>=<span>567</span></span><span>=<span>8
</span></span><span>7<span>(<span>78</span>)</span></span><span>=<span><span>(<span>71</span>)</span><span>(<span>78</span>)</span></span></span><span>=<span><span><span>(7)</span><span>(7)</span></span><span><span>(1)</span><span>(8)</span></span></span></span><span>=<span>498</span></span><span>(Decimal: 6.125)
</span><span>7−<span>78</span></span><span>=<span><span>71</span>−<span>78</span></span></span><span>=<span><span>71</span>+<span><span>−7</span>8</span></span></span><span>=<span><span>568</span>+<span><span>−7</span>8</span></span></span><span>=<span><span>56+<span>−7</span></span>8</span></span><span>=<span>498</span></span><span>(Decimal: 6.125)
</span><span>7+<span>78</span></span><span>=<span><span>71</span>+<span>78</span></span></span><span>=<span><span>568</span>+<span>78</span></span></span><span>=<span><span>56+7</span>8</span></span><span>=<span>638</span></span>(Decimal: 7.875)<span>
</span>i have adding subtracting , dividing , and multiplying<span> </span> there all your anwser i hope this help<span>xx
</span>
Answer:
a. Domain - x= all real numbers
b. Domain - x= all real numbers except 0
c. Domain - x= all real numbers
d. Domain - x= All real numbers
Step-by-step explanation:
The domain of a function is all the possible x values. It is easy to solve for domain by graphing the function.
a graph - blue
b graph - red
c graph - green
d graph - purple