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In an agricultural experiment, a large uniform field was planted with a single variety of wheat. The field was divided into many plots (each plot
In an agricultural experiment, a large uniform field was planted with a single variety of wheat. The field was divided into many plots (each plot being 7 100 ft) and the yield (lb) of grain was measured for each plot. These plot yields followed approximately a normal distribution with mean 88 lb and standard deviation 7 lb. Use the pnorm() function in R to find the percentage of the plot yields that were 90 lb or more. Round the percentage to 2 places after the decimal.
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