Question

this chapter quiz is for chapter 6. this quiz is not timed. you will have 10 tries and there is no penalty for wrong tries. you only need to correct the wrong answers.
this quiz has basic questions on chapter 6.1a and 6.1b material. there are no questions from hwil 6.2b. from hwil 6.1a, you will find the la (left area) and ra (right area) for z - scores and then la and ra for x - values given the population mean and standard deviation. from hwil 6.1b, you find the area in - between for z - scores and x - values, and then find the z - score for a given percentile or the x - value for a given percentile. please review this material before taking this quiz. this quiz will close and no longer be accessible as of midnight on may 25, 2020.
having difficulties? please contact ms. bates.
question 1
1 pts
find ( p(zleq - 1.24)=)
question 2
1 pts
find ( p(zleq0.03)=)

Explanation:

Step1: Use the standard normal distribution table

For \(P(Z\leq - 1.24)\), look up the value in the standard - normal table. The standard normal table gives the cumulative probability \(P(Z\leq z)\) for \(z\) values.
For \(z=-1.24\), in the standard normal table, we find the row corresponding to \(-1.2\) and the column corresponding to \(0.04\). The value in the table is \(0.1075\).

Step2: For \(P(Z < 0.03)\)

Look up \(z = 0.03\) in the standard - normal table. We find the row corresponding to \(0.0\) and the column corresponding to \(0.03\). The value in the standard normal table for \(z = 0.03\) is \(0.5120\)

Answer:

Question 1: \(0.1075\)
Question 2: \(0.5120\)