Elements of the Human Body than 0.1% of the human body mass have been excluded from this data. Percent by Mass 1.0 0.4 0.3 Element Element Percent by Mass 65 18 Oxygen Carbon Hydrogen Nitrogen Calcium Phosphorus Potassium Sulfur Sodium Magnesium 10 0.2 3 1.5 0.1 Data like this that adds up to a full 100% can be conveniently displaved using a pie chart. To make one of these charts, start with a circle and create a segment for the largest percentage first. Then, begin making smaller segments to account for each of the other data points. Label each portion of the pie chart.

Do you think there will be a significant difference in the number of cfus/g enumerated from the surface of spinach between you and your classmates?

How do you calculate dosages safely?

Coloured and white beads were carefully selected for equality of size and shape. Equal quantities of each colour were then placed in a container. Randomly select enough beads to fill the cover of a petri dish. Count the number of beads of each colour and record your data in table 1.6. Then calculate the expected numbers based on the sample size and the known ratio of white to coloured beads. Complete the table and calculate 32. Table 1.6 Chi-Square Calculations for Colored And White Beads Phenotype O E (O-E) (O-E)2 (O-E)2/E Colored           White           Totals             How many degrees of freedom are there? Using table 1.5, what 32 values lie on either side of your calculated 32 value? What are the probability values associated with the 32 values? Briefly interpret the 32 value you have just calculated.