Based on the histogram what is the class width?

The following is a sample of 20 test scores from a math class: 52, 62, 63, 66, 68, 72, 74, 76, 76, 78, 82, 84, 84, 86, 88, 92, 96,101,105, 110. Find Five Number Summary. Show work.

Seventy percent of married couples paid for their honeymoon themselves. Suppose you randomly select 20 married couples and ask each one if they paid for their honeymoon. Please answer the following questions in the order listed, labeling your answers as A, B, C, and D. Find the probability that the number of couples who said they paid for their honeymoon themselves is exactly one. Use proper notation. Find the probability that the number of couples who said they paid for their honeymoon themselves is more than one. Use proper notation. Find the probability that the number of couples who said they paid for their honeymoon themselves is between 10 and 15 inclusive. Use proper notation. What is the range of usual number of couples who paid for honeymoon themselves?

A population has mean μ = 26 and standard deviation σ = 5. Round the answers to two decimal places as needed. Find the z-score for a population value of 12.3.

Which of the following directly phosphorylate tyrosines to start a kinase protein enzymatic cascade? A) Receptor threonine kinaseB) Receptor serine kinaseC) Receptor tyrosine kinaseD) Receptor guanylyl cyclases  

The specificity of a ligand binding site on a protein is based on: A) the absence of competing ligands. B) the amino acid residues lining the binding site C) the presence of hydrating water molecules. D) the opposite chirality of the binding ligand

How are fatty acid synthesis and b -oxidation reciprocally regulated? A) A high concentration of malonyl-CoA inhibits b-oxidation and a high cytosolic concentration of fatty acids inhibits fatty acid synthesis. B) A high concentration of fatty acids inhibits b-oxidation and a high cytosolic concentration of malonyl-CoA inhibits fatty acid synthesis. C) A low concentration of malonyl-CoA inhibits b-oxidation and a low cytosolic concentration of fatty acids inhibits fatty acid synthesis. D) A low concentration of fatty acids inhibits b-oxidation and a low cytosolic concentration of malonyl-CoA inhibits fatty acid synthesis.

In the first four steps of the citric acid cycle, whereby acetyl-CoA and oxaloacetate are converted to succinyl-CoA, which of the following is also produced? A) 3 NADH                 B) 1 GTP C) 1 FADH2 D) 2 CO2

Which of these statements about enzyme-catalyzed reactions that obey Michaelis-Menten kinetics is true? A) At saturating levels of substrate, the rate of an enzyme-catalyzed reaction is proportional to the enzyme concentration. B) The Michaelis-Menten constant Km equals the [S] at which V = 1/2 Vmax. C) If enough substrate is added, the normal Vmax of a reaction can be attained even in the presence of a competitive inhibitor. D) All of the above

Which of following is an anomeric pair? A) D-glucose and L-glucose B) D-glucose and D-fructose C) α-D-glucose and β-D-glucose D) α-D-glucose and β-L-glucose