Four year-olds in China average 4 unsupervised hours per day. Most of the unsupe

Question

Four year-olds in China average 4 unsupervised hours per day. Most of the unsupervised children live in rural areas, considered safe. Suppose that the amount of unsupervised time is normally distributed with standard deviation 0.5.. A Chinese 4-year old is randomly selected from a rural area. We are interested in the amount of time the child spends alone per day. In each appropriate box you are to enter either a rational number in "p/q" format or a decimal value accurate to the nearest 0.01. a. In words, the random variable X in which we are interested is defined by X = (pick one) b. Find the probability that the child spends less than one hour per day unsupervised P(X 10) = d. The 70^th percentile of the distribution of unsupervised time is given by p (X

Explanation / Answer

a.) Answer   X = The amount of time the child spends alone.

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

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