Ms. Stewart teaches three science classes. Her students are freshmen and sophomores. Her student data are shown in the relative frequency table.  Biology Chemistry Physical science TotalFreshman 0.15 0.1 0.2 0.45Sophomores 0.2 0.25 0.1 0.55Total 0.35 0.35 0.3 1.0Which statement is false?A.35% of her students are in chemistry.B.55% of her students are sophomores.C.35% of her students are in biology.D.20% of her students are in physical science.SUBMITarrow_backPREVIOUS

Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below.Part-time Student Course Loads# of Courses Frequency Relative Frequency Cumulative RelativeFrequency1 25 0.5 2 15 3 Part (a)Fill in the blanks in the table.Part-time Student Course Loads# of Courses Frequency Relative Frequency Cumulative RelativeFrequency1 25 0.5 2 15 3 Part (b)What percent of students take exactly two courses? %Part (c)What percent of students take one or two courses? %

The students in Ms. Carter's science classes just finished their end-of-the-year projects. The students chose between studying an endangered animal or an extinct animal. They also chose between creating a video or a slideshow for their project. This table shows the results.Slideshow Video TotalEndangered animal 46 23 69Extinct animal 30 15 45Total 76 38 114Based on the data in the table, which statement is true?

A waitress kept track of whether her customers ordered an appetizer and dessert. Her data are shown in a relative frequency table.  Appetizer No appetizer TotalDessert 0.1 0.3 0.4No dessert 0.2 0.4 0.6Total 0.3 0.7 1.0What does the 0.3 in the highlighted cell mean?A.30% of the customers who ordered dessert did not order an appetizer.B.30% of her customers did not order an appetizer.C.30% of her customers ordered dessert.D.30% of her customers ordered dessert but no appetizer.SUBMITarrow_backPREVIOUS

In a survey, 250 adults and children were asked whether they know how to swim. The survey data are shown in the relative frequency table.  Can swim Cannot swim TotalAdults 0.34 0.06  Children 0.48 0.12  Total      What percentage of the people surveyed cannot swim?A.18%B.12%C.40%D.6%SUBMITarrow_backPREVIOUS

The given table represents the statements of each student regarding the image. With reference tothe steps of biological method of study, which of the following students’ statements will becategorised as ‘observation’?Student StatementA The plant is in wilted condition.B The plant is provided with excessive nutrients.C Insufficient water is provided to the plant.D Transpiration has occurred in the plant.