No reason, or no evidence to support your claim/proof
Answer:
ga sbgjdsbjdvbhjvbhjvcnb bn dsb sd
Step-by-step explanation:
The Z-score is calculated by the formula below
![\begin{gathered} z-score=\frac{(x-\mu)}{\sigma}_{} \\ \mu=\operatorname{mean} \\ \sigma=s\tan dard\text{ deviation} \\ x=\text{score} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20z-score%3D%5Cfrac%7B%28x-%5Cmu%29%7D%7B%5Csigma%7D_%7B%7D%20%5C%5C%20%5Cmu%3D%5Coperatorname%7Bmean%7D%20%5C%5C%20%5Csigma%3Ds%5Ctan%20dard%5Ctext%7B%20deviation%7D%20%5C%5C%20x%3D%5Ctext%7Bscore%7D%20%5Cend%7Bgathered%7D)
Step 2: Substitute the given parameters in the formula
![\begin{gathered} z-\text{score}=\frac{145-165}{40} \\ Z=-\frac{20}{40} \\ Z=-\frac{1}{2} \\ Z=-0.5 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20z-%5Ctext%7Bscore%7D%3D%5Cfrac%7B145-165%7D%7B40%7D%20%5C%5C%20Z%3D-%5Cfrac%7B20%7D%7B40%7D%20%5C%5C%20Z%3D-%5Cfrac%7B1%7D%7B2%7D%20%5C%5C%20Z%3D-0.5%20%5Cend%7Bgathered%7D)
Hence, the z-score of a person who scored 145 on the exam is -0.5
Answer:
Step-by-step explanation:
7 with exp 3 times 9 with exp 4 minus 2=
343 times 6561 minus 2=
2250421
Answer:
When you multiply a negative number by a positive number then the product is always negative. When you multiply two negative numbers or two positive numbers then the product is always positive. 3 times 4 equals 12. Since there is one positive and one negative number, the product is negative 12.
Step-by-step explanation: