1. continuous 2. H-spread The assumption of normality was checked by comparing the 3. kurtosis and the median. 4. left This suggests that the distribution is slightly skewed. 5. is v The is between the acceptable range of -3 and +3. 6. is not 7. mean v The tail of the histogram is slightly longer. 8. median v The median is in the center of 9. negatively v There enough evidence that the data is Normal. 10. positively 11.right LOubmit to save and submit. Click Save All Answers to save all answers. 0on nom >

Im confused on #1.) Letter C. I already found the 68% range and the 95% range by using the empirical rule. Now it is asking " What percentage of this sample fall bellow 90? With the mean of 78 and standard deviation of 6.

Quiz: Week 3 Quiz X a Recall that for normally https://fiu.instructure.com/courses/1805 X C Solved Recall that for no X CD Question 2: Recall that for normally- distributed data, 50% of Z-score values lie between -0.6745 and +0.6745. Compute 1.5 XIQR for the normal distribution of Z-score values. Round your answer to two decimal places.

Find the proportion of Normally distributed observations with a z-score below 0.82. Give your answer to four decimal places. Find the proportion of Normally distributed observations with a z-score above -2.84. Give your answer to four decimal places. Find the proportion of N.d. observations with a z-score between z1​= -2.58 and z2​= 3.18. Give your answer to four decimal places.

1.  Find the area of the shaded region. The graph to the right depicts IQ scores of​ adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15.   Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING...                 75         A graph with a bell-shaped curve, divided into 2 regions by a vertical line. The vertical line extends from the bell curve to the x-axis, and is located on the left half, under the curve. The region on the left of this line is shaded. The x-axis below the vertical line is labeled 75.     2.  Find the area of the shaded region. The graph to the right depicts IQ scores of​ adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15.                     83         A symmetric bell-shaped curve is plotted over a horizontal scale. A vertical line runs from the scale to the curve at labeled…

Pls help ASAP.

4. Which proportion of a normal distribution is located between the mean and z = +1.40? 5. A vertical line drawn through a normal distribution at z = +2.11 separates the distribution into two sections, the body and the tail. Which proportion of the distribution is in the tail?

Find the proportion of Normally distributed observations with a z-score above 0.80. Give your answer to four decimal places. Find the proportion of N.d. observations with a z-score between z1​= -0.34 and z2​= 2.72. Give your answer to four decimal places.

Shaded diagram.. 3. The random variable X has a normal distribution with mean 80 and standard deviation 6. Choose random samples of size 40 from this distribution. Let X be the random variable of sample means. (5) a. What is the distribution of X ? (5) b. What is the mean of X ? y

The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?