Mathematics, 26.12.2019 19:31 galaxychild101
Asurvey of 70 students from a high school is conducted. from this sample, it is found that 58 students have sent a text message on their smartphone at least once today, 21 have uploaded at least one "selfie" on their smartphone today, and 12 have done both.
text message have not sent a text message total
have taken a selfie 12 21
have not taken a selfie
total 58 70
complete the rest of the two-way frequency table above. part a: how many students have neither sent a text message nor taken a selfie today? part b: what percentage of students in the school (rounded to the nearest whole percent) have sent a text message or have taken a selfie at least once today?
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Asurvey of 70 students from a high school is conducted. from this sample, it is found that 58 studen...
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