PMP考试

根据网考网考试中心的统计分析，以下试题在2019/11/5日PMP考试习题练习中，答错率较高，为：66%
【单选题】two sources of variation in the length of hex bolts exist. production variation and measurement error. the qc manager knows that the
standard deviation from these sources is 0.24" and 0.43" , respectively. what is the total standard deviation.
a. .10 inch.
b. .19 inch.
c. .34 inch.
d. .49 inch.
e. .67 inch.

网考网参考答案：D，答错率：66%
网考网试题解析：
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