Does t pay to ask for a raise? A national survey of heads of households sho ed t

Question

Does t pay to ask for a raise? A national survey of heads of households sho ed the percentage or those who asked for a raise and the percerage who t one Aardetot now of the women interviewed, 28% had asked for a raise, and et those women who had asked for a rase 45% re m ed the raw naman weesdae ransom tom the sam, population of women, find the following probabilities. (Enter your answers to three decimal places.) (a) P(woman asked for a raise) woman received raise, given she asked for one) woman asked for raise and received ralse) Need Help? eatn 4. -2 points 4 R 012 Alergic reactions to polson bwy can be miserable. Plant oils cause the reaction. Researchers at Allergy institute aid a study to determine the afects of washing the oll off sithin S minutes of exposure. A random sample of 1000 people with known allergles to poison ivy participated in the study. Oil from the poison lvy plant was rubbed on a patch of skin. For s500 of the subjects, it was washed of wilthin S minutes For the other 500 subjects, the oil was washed off after 5 minutes. The resuilts are summarized in the following table Mid Strong 62 28 320 114 382 142 Let's use the following notation for the various events w washing oil orf witin S minutes, A-washing l o" after 5 minutes, N Find the following probabilities for a person selected at random from this sample of 1000 subjects. Use 3 deci nal places.) no rea ton, As mld reaction S·strong reaction ^ Type here to search

Explanation / Answer

1 i) P(woman asked for a raise) = 0.28

ii) P(woman received raise | asked for a raise) = 0.45

iii) P(woman asked for raise and woman received raise) = P(woman received raise | asked for a raise) * P(woman asked for a raise) = 0.45 * 0.28 = 0.126

Note: Please post the second question separately if it requires answering. Thanks in advance

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