Describe How To Use Calculator To Find P(z>1.8) With A
The text is about learning how to use a TI-84 calculator to find the z-score and probability for a given Normal distribution. It also mentions using a computer or calculator, specifically a TI-84, to find probabilities for a normal distribution without the use of the calculator.
To find ( P(Z > 1.8) ) with a TI-84 calculator, you can use the "normalcdf" function. Here are the steps to do that:
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Press the "2ND" key, then press "VARS" to access the "DISTR" menu.
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Scroll down or press "2" to select "2: normalcdf".
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Enter the lower bound as 1.8 (since we want to find ( P(Z > 1.8) ), there is no lower limit, so just use a very small number like -999 or -1E99).
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Enter the upper bound as a very large number, such as 999 or 1E99, to approximate positive infinity.
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Enter the mean as 0 and the standard deviation as 1 since we are finding the probability for the standard normal distribution.
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Press "ENTER" to calculate the probability ( P(Z > 1.8) ).
After following these steps, the calculator should give you the probability that a z-score is greater than 1.8.
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