Solve the problem. Which of the following methods may be used to determine if da

Question

Solve the problem. Which of the following methods may be used to determine if data is normally distributed? I. Construct a histogram and/or stem-and-leaf display of the data and check the shape. 11. Compute the intervals x ± s, x 2s, and x ± 3s, and determine the percentage of measurements falling in each. Compare these percentages to 68%, 95%, and 100%. e a value of a If this value is a IV Construct a normal probability plot of the data. If the points fall on a straight line, then the data is normal. Oll only O I, II, IlI, and IV Oonly O I only O IlIl only

Explanation / Answer

Option A ) Histogram and stam and leaf chart are graphical methods used to check the normality of data .

Option B ) The empirical rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean.

Option C ) The IQR is and Standard deviation are both the measures of spread of the data around the mean.

Option D ) Normal probability plot is the graphical technique to check whether the data is normally distributed or not.

So, all these above options are correct.

Option B ) 1,2,3,and 4 are correct ...(Answer )

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.