Since we are given the mean μ = .80, and standard deviation σ = 5, we compute first the corresponding z scores of x₁ = .70 and x₂ = .80.
The formula for z score is z = (x-μ)/σ.
z₁ = (.70-.80)/5 = -0.02
z₂ = (.80-.80)/5 = 0
Then, using a z table, we find the probability of the corresponding z scores.
For z₁, it is 0.4920 and for z₂ it is 0.5000. (If you notice, x=μ, its probability will always be 0.5000).
We then find the difference between the two probabilities in order to find the percentage of students that earned <span>a score between 70% and 80%
0.5000 - 0.4920 = 0.008 = 0.8%
Only 0.8% of students earned a score between 70% and 80%.</span>
The model represents that 4 divided by 1/3 is 12.
Keep in mind that dividing fractions is the same is multiplying by the reciprocal. The reciprocal of 1/3 is 3/1, or just 3.
The image shows a 4 being divided into 4 groups of 3. When you count the boxes, you can see that there are 12. This means that whatever equation you do, you will want your answer to be 12.
As we stated above, 4 divided by 1/3 is really just 4*3, which equals 12. This confirms that the correct answer is B.
Answer:
bottom one
Step-by-step explanation:
Because it's tall and if it was the same as the circumference it would have been wide
Try using this
https://www.almanac.com/content/temperature-conversion