A botany class has 100 students. Each student plants 5 seeds…
A botany class has 100 students. Each student plants 5 seeds in a tray. Assume the seeds germinate independently, and each seed has probability 0.4 of germinating within one week. What is the probability that a given student has at least 3 seeds germinate within one week? (At least 2 decimals.)
Read DetailsA social researcher is interested in studying the relationsh…
A social researcher is interested in studying the relationship between an abstinence-only program and teen pregnancy. To test her hypothesis, she compares the results of 50 teens participating in an abstinence-only program to 50 teens participating in a more conventional sex- education program. What type of research is this?
Read DetailsThe following frequency distribution table from the GSS 2010…
The following frequency distribution table from the GSS 2010 shows the number of children each respondent had. The total number of respondents (N) is 2041. What is the median number of children? Number of Children Frequency (f) Cumulative Frequency (Cf) Cumulative Percentage (Cf%) 0 562 562 27.5 1 332 894 43.8 2 528 1422 69.7 3 392 1751 85.8 4 144 1895 92.8 5 61 1956 95.8 6 35 1991 97.6 7 18 2009 98.4 8 or more 32 2041 100 N = 2041
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