Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. Find the probability that a randomly selected thermometer reads between - 1.33 and - 0.45 and draw a sketch of the region. Click to view page 1 of the table. Click to view page 2 of the table. Sketch the region. Choose the correct graph below. O A. OB. Oc. -1.33 0.45 -1.33 0.45 -1.33 0.45 The probability is (Round to four decimal places as needed.)

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8

### Normal Distribution and Probability

Assume the readings on thermometers are normally distributed with a mean of \(0^\circ C\) and a standard deviation of \(1.00^\circ C\). Find the probability that a randomly selected thermometer reads between \(-1.33\) and \(-0.45\) and draw a sketch of the region.

#### Steps to Solve:

1. Identify the mean (\(\mu\)) and standard deviation (\(\sigma\)) for the normal distribution:
   - Mean (\(\mu\)): \(0^\circ C\)
   - Standard deviation (\(\sigma\)): \(1.00^\circ C\)
   
2. Look up the corresponding values in the Z-table for the Z-scores:
   - Z-score for \(-1.33\)
   - Z-score for \(-0.45\)

#### Visual Representation:

**Choose the correct graph that represents the region between \(-1.33\) and \(-0.45\).**

- **A:** (Graph image) The shaded area is the section of the normal distribution curve between Z = \(-1.33\) and Z = \(-0.45\). However, shading is on the left side of \(-1.33\).
- **B:** (Graph image) The shaded area correctly represents the normal distribution curve between Z = \(-1.33\) and Z = \(-0.45\).
- **C:** (Graph image) The shaded area is the section of the normal distribution curve between Z = \(-1.33\) and Z = \(-0.45\), but shading continues far right to other areas.

**The correct graph is B:**
(Graph image fully shaded between \(-1.33\) and \(-0.45\))

#### Calculate the Probability:

The probability is ________
(Round to four decimal places as needed.)

**Resources:**
- [Page 1 of the table](#)
- [Page 2 of the table](#)

This example illustrates how to determine probabilities for specific ranges in a normal distribution using Z-scores and lookup tables.
Transcribed Image Text:### Normal Distribution and Probability Assume the readings on thermometers are normally distributed with a mean of \(0^\circ C\) and a standard deviation of \(1.00^\circ C\). Find the probability that a randomly selected thermometer reads between \(-1.33\) and \(-0.45\) and draw a sketch of the region. #### Steps to Solve: 1. Identify the mean (\(\mu\)) and standard deviation (\(\sigma\)) for the normal distribution: - Mean (\(\mu\)): \(0^\circ C\) - Standard deviation (\(\sigma\)): \(1.00^\circ C\) 2. Look up the corresponding values in the Z-table for the Z-scores: - Z-score for \(-1.33\) - Z-score for \(-0.45\) #### Visual Representation: **Choose the correct graph that represents the region between \(-1.33\) and \(-0.45\).** - **A:** (Graph image) The shaded area is the section of the normal distribution curve between Z = \(-1.33\) and Z = \(-0.45\). However, shading is on the left side of \(-1.33\). - **B:** (Graph image) The shaded area correctly represents the normal distribution curve between Z = \(-1.33\) and Z = \(-0.45\). - **C:** (Graph image) The shaded area is the section of the normal distribution curve between Z = \(-1.33\) and Z = \(-0.45\), but shading continues far right to other areas. **The correct graph is B:** (Graph image fully shaded between \(-1.33\) and \(-0.45\)) #### Calculate the Probability: The probability is ________ (Round to four decimal places as needed.) **Resources:** - [Page 1 of the table](#) - [Page 2 of the table](#) This example illustrates how to determine probabilities for specific ranges in a normal distribution using Z-scores and lookup tables.
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