Kindly answer items 1, 2, 3 and 4. Please choose the correct option.

ruigE

ruigE

Answered question

2021-10-10

Kindly answer items 1, 2, 3 and 4. Please choose the correct option.
1.The total area under the standard normal curve is__.
A-1 B.O C.0.5 D.1
2. What is the shape of a Normal Probability Distributions?
A.bar B.bell C.circle D.line
3.Which part of a normal curve is extended indefinitely both directions along thehorizontal axis, approaching but never touching it?
A.center B.tail C.top D.spread
4.Which of the following rule states that almost all data fall within the 1, 2 and 3 of standard deviation of mean when the population is normally distributed?
A. Empirical rule B. Pascal's triangle rule C. Lottery rule D. Sampling rule

Answer & Explanation

tafzijdeq

tafzijdeq

Skilled2021-10-11Added 92 answers

Step 1
Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any specific subpart to be answered then please submit that subpart only or specify the subpart in your message.
1.
The total area under standard normal curve is,
Explanation:
According to the properties of standard normal distribution, the total area under standard normal curve is 1.
Answer:
Option D. 1.
Step 2
2.
What is the shape of the normal probability distributions?
Explanation:
According to the properties of normal distribution, the shape of the normal probability distributions is bell shaped.
Answer:
Option B. Bell.
3.
Which part of a normal curve is extended indefinitely both directions along the horizontal axis, approaching but never touching it?
Explanation:
According to properties of normal distribution, its tails are are extended indefinitely both directions along the horizontal axis, approaching but never touching it.
Answer:
Option B. tail.

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