Researchers at UCLA were interested in whether working mothers were more likely to suffer workplace injuries than women without children. They studied 1,400 working women, and a summary of their findings was reported in the San Luis Obispo Telegram- Tribune (February 28, 1995). The information in the following table is consistent with summary values reported in the article:

The researchers drew the following conclusion: Women with children younger than age 6 are much more likely to be injured on the job than childless women or mothers with older children. Provide a justification for the researchers€™ conclusion. Use the information in the table to calculate any relevant probabilities.

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Children, No Children but None Children Under 6 Under 6 Total 56 156 644 1.244 Injured on the Job In 1985 32 68 Not Injured on the job in 1989 368 400 232 300 Total 700 1400