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Suppose the returns on long-term corporate bonds are normallydistributed. The average annual return for long-term corporatebonds from 1926 to 2007 was 6.7 percent and the standard deviationof those bonds for that period was 9.4 percent.(a)Based on this historical record, what is the approximateprobability that your return on these bonds will be less than -3.6percent in a given year? (Do not round intermediatecalculations.) (Click toselect)14.21%12.98%13.66%14.34%27.32% (b)What range of returns would you expect to see 95 percent of thetime? (Do not round intermediatecalculations.) (Click to select)-12.10% to25.50%-21.50% to 34.90%-11.49% to 24.23%-12.70% to 26.78%-4.00% to22.80% (c)What range would you expect to see 99 percent of the time?(Do not round intermediate calculations.)