Mr.Garcia asked the members of his health class how many days last week they exercised for at least 30 minutes.The results are summarized in the following bar graph,where the heights of the bars represent the number of students.
What was the mean number of days of exercise last week,rounded to the nearest hundredth,reported by the students in Mr.Garcia's class？（ ?。?br />Garcia老師詢(xún)問(wèn)了他的健康課的學(xué)生們上周他們至少鍛煉了30分鐘的天數(shù)是多少。結(jié)果總結(jié)在以下的柱狀圖中，柱子的高度表示學(xué)生的數(shù)量。
Garcia老師的班級(jí)的學(xué)生們上周平均鍛煉了多少天，四舍五入到最接近的百分之一？（ ?。?/div>
【答案】C
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發(fā)布：2024/9/7 0:0:8組卷：1引用：1難度：0.5
