The location of 25 genes that are involved in spermatogenesis were identified in the mouse genome. the x chromosome contains about 6.1% of the genes in the genome, and so if the genes were distributed across the x and y chromosomes by chance, one would expect about 6.1% of these 25 genes to be on the x chromosome. the researchers conjectured that the x chromosome carries a higher proportion of these genes than one would expect by chance. in fact, in their study of these 25 genes, 40% fell on the x chromosome. a) the parameter, pi, is the probability that one of the 25 genes involved in spermatogenesis will fall on the x chromosome. write the null and alternative hypotheses for the conjecture that a disproportionate number of these genes fall on the x chromosome. null hypothesis: pi=0.061 alternative hypothesis: pi> 0.061 b) using the one proportion applet, , find the null distribution for this test. use 1000 repetitions. state the approximate p-value from this simulation

Ngrid mixes 3.6 pounds of almonds with some raisins to make a trail mix. she divides the trail mix into 12 equal portions. each portion weighs 0.7 pound. how many pounds of raisins did she use to make the trail mix? express the answer to the nearest tenth.

You and three friends will be going out to eat at your favorite restaurant! each of you will order three items of your choice. you will also need to leave a tip. if you split the bill evenly among all four of you, how much will each person need to contribute? locate a menu for your favorite restaurant and pick three items for yourself and each friend. list the restaurant name, items, and prices in a table like the one below. in the column labeled subtotal, determine the cost of each person’s order. the customary tip is 20% of the total bill. in the column labeled tip, calculate the amount of tip each person should leave. in the column labeled total bill, determine the total of each person’s order, including the tip. restaurant name: names item 1 price item 2 price item 3 price subtotal tip total bill your name friend #1 friend #2 friend #3 part 2: questions answer the following questions, showing all work: what is the total cost of the entire bill (all four meals), including tip? write an expression using fractions to show how to determine the amount that each person will pay. then calculate each person's contributions showing all steps in long division. if each person paid an equal amount, who would save the most money? explain your reasoning using at least two complete sentences.

Click the arrows to advance or review slides. mapping carbohydrates to food carbohydrates (grams) 15 food (quantity) bread (1 slice) pasta (1/3 cup) apple (1 medium) mashed potatoes (1/2 cup) broccoli (1/2 cup) carrots (1/2 cup) milk (1 cup) yogurt (6 oz.) 12 12 is jennifer's relation a function? yes no f 1 of 2 → jennifer figure out the difference between a function and a relation by answering the questions about her food choices